During gamma decay, the nucleus become more stable without changing its identity.
The nucleus emits radiation during gamma decay without actually changing its makeup: We begin with a nucleus that contains 12 protons and 12 neutrons, and we finish with a nucleus that contains 12 protons and 12 neutrons. however, radioactivity escapes in the process.
When a nucleus has insufficient protons and too many neutrons, beta decay occurs (the neutron to proton ratio is too high). By converting a neutron into a proton and an electron, the nucleus becomes more stable. The beta particle is expelled quickly while the proton stays inside the nucleus.
To know more about radioactive decay, refer to the following link:
https://brainly.com/question/1236735
#SPJ4
I С -н :-H I 6. The Lewis structure for the weak base aniline, C6H5NH2 is Write a balanced equation that shows the products formed when aniline dissolves in water (use the Bronsted-Lowry definition to show proton transfer from water to aniline). Calculate the pH, POH, (H30+], and [OH-] of a 0.30 M solution of aniline. The Ko value for aniline is 3.9 x 10-10.
The pH value is 9.93, the pOH value is 9.3 the [H30+] value is 1.17 x 10^-10 M, and the [OH-] value is 1.17 x 10^-10 M.
What is a Lewis structure?A Lewis structure, also known as a Lewis dot diagram, is a way to represent the bonding and non-bonding electrons in a molecule. It is named after Gilbert N. Lewis, who introduced it in 1916. A Lewis structure shows the chemical symbol of each atom in the molecule and the electrons that are involved in the chemical bonds. It is used to predict the molecular geometry, reactivity, and other chemical properties of a molecule.
The Lewis structure for aniline, C6H5NH2, is:
H H
| |
C-C-C-C-C-C
|
N-H
When aniline dissolves in water, it acts as a weak base, accepting a proton from water to form the conjugate acid, C6H5NH3+. The balanced equation for this reaction is:
C6H5NH2(aq) + H2O(l) <--> C6H5NH3+(aq) + OH-(aq)
The acid dissociation constant (Ka) for the reverse reaction is given as Ko = 3.9 x 10^-10. To calculate the pH, POH, [H3O+] and [OH-] of a 0.30 M solution of aniline, we can use the following equations:
Ka = [C6H5NH3+][OH-] / [C6H5NH2]
Given Ka = 3.9 x 10^-10, [C6H5NH2] = 0.30 M and solving the above equation, we get [C6H5NH3+] = 1.17 x 10^-10 M and [OH-] = 1.17 x 10^-10 M
pH = -log[H3O+] = -log(1.17 x 10^-10) = 9.93
pOH = -log[OH-] = -log(1.17 x 10^-10) = 9.93
[H3O+] = 1.17 x 10^-10 M
[OH-] = 1.17 x 10^-10 M
To learn more about Lewis structure visit:
https://brainly.com/question/20300458
#SPJ4
The sentence below from the section "1 Million Species Threatened" helps prove the claim that humans need nature.
"Nature is essential for human existence and good quality of life," the report said.
Which selection from the section provides further support for the claim?
3 points
A big report released on May 6 warned that nature is in trouble and estimated that 1 million species are threatened with extinction if nothing is done.
Food, energy, medicine, water, protection from storms and floods and slowing climate change are some of the 18 ways nature helps keep people alive, the report said.
He pointed to how difficult it has been for China to come back from decades of forest loss. The country has replanted trees in recent years.
The Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services report points to more than 2,500 wars and other conflicts over fossil fuels, water, food and land.
The selection from the section that provides further support for the claim is that B. Food, energy, medicine, water, protection from storms and floods and slowing climate change are some of the 18 ways nature helps keep people alive, the report said.
What is the selection that supports the claim?Selection 2, "Food, energy, medicine, water, protection from storms and floods and slowing climate change are some of the 18 ways nature helps keep people alive, the report said." provides further support for the claim that humans need nature.
It lists several specific ways in which nature is essential for human existence and good quality of life, and it is align with the statement "Nature is essential for human existence and good quality of life," the report said. Additionally, it provides an estimation of 18 ways which nature helps human to survive, adding more weight on the statement.
Learn more about claim on:
https://brainly.com/question/2748145
#SPJ1
Which of the following broken bone ends movement could not be prevented by putting a plaster cast around the broken bone?
A. Broken finger
B. Broken elbow
C. Broken rib bone
D. Broken wrist bone
⊂∞∞∞⊃≤∴∴∵∵∴∴≥
Answer: broken rib bone
Explanation: you’re not able to put a cast inside your ribs
choose the pair of terms that completes this sentence: hydroxyl is to _____ as _____ is to amine.
choose the pair of terms that completes this sentence:
hydroxyl is to alcohol as amino is to amine.
Amino acids are the building blocks of proteins and are found in a variety of natural and man-made sources. Most amino acids are naturally produced by plants and animals, but some are synthesized in the laboratory.Unnatural amino acids are used to study protein structure and function or to create new proteins with desired properties.
Amino acids are divided into three groups:Essential amino acids,nonessential amino acids and conditional amino acid.
to know more about amino acids;
https://brainly.com/question/28409615
#SPJ4
In the process of nitrification, nitrate reductase converts _____ into _____.
A) nitrate; nitrogen
B) nitrate; ammonia
C) nitrate; nitrite
D) nitrate; nitric oxide
E) nitrogen; nitrate
Which of the following is the most stable carbocation? CH3 I. IV. CH3 CH3 V. CH3
CH3 CH3 is a tertiary carbocation. A tertiary carbocation is the most stable carbocation due to the electron releasing effect of three methyl groups.
Carbocations are generally stabilized with the neighboring carbon-carbon multiple bonds. Carbocations that are present adjacent to some other carbon-carbon with double or triple bond are having very special stability the reason is having a overlap between the empty p orbital of the carbocation.
Hence, tertiary carbocation is considered as most stable carbocation because of electron releasing effect of three methyl groups. so, we can say that Greater the number of alkyl groups attached to a positively charged carbon atom, greater will be hyperconjugation interaction and +I effect of methyl group will stabilize the cation.
To learn more about Carbocations , here
brainly.com/question/13164680
#SPJ4
. If 100 g of calcium carbonate is allowed to decompose, 56 g of calcium oxide is produced. What mass of carbon dioxide is produced by the decomposition
If 100 g of calcium carbonate is allowed to decompose, 56 g of calcium oxide is produced. The mass of carbon dioxide is produced by the decomposition will be 44g
According to the given equation
CaCO₃ → CO₂ + CaO
As
mass of CaCO₃ = 100g
mass of CaO = 56g
mass of CO₂= ?
depending on the conservation of mass
mass of the reactant = mass of the product
100 g = ( X + 56 )
mass of CO2 = 100 - 56
= 44 g
So the mass of carbon dioxide is produced by the decomposition will be 44g
To look more about carbon dioxide click here
brainly.com/question/15063989
#SPJ4
What is the trend for the ionic radius as the atomic number increases in Peried 2?
The trend for the ionic radius as the atomic number increases in Period 2 is that it decreases.
In general, the ionic radius of an element is the distance between the nucleus and the outermost stable electron shell of an atom or ion. As the atomic number increases, the number of protons in the nucleus also increases, which creates a greater positively charged force (the positively charged protons) pulling the electrons closer to the nucleus. This causes the radius of the outermost stable electron shell to decrease, and therefore the ionic radius also decreases.
In Period 2, the atomic number increases from Z = 3 (Lithium) to Z = 10 (Neon). The ionic radius of Li+ is 0.76 Å and the ionic radius of Ne2+ is 0.43 Å, Therefore, the ionic radius decreases as the atomic number increases within Period 2.
Which of the following compounds would be expected to have the lowest boiling point because it has the weakest physical bonding? Show work
A) LiCI
B) H2O
C) CH4
D) CH3CH2OH
E) KF
The compounds that would be expected to have the lowest boiling point because it has the weakest physical bonding is CH4.
Option C is correct.
What is boiling point?The boiling point of any substance is described as the temperature at which the vapor pressure of a liquid equals the pressure surrounding the liquid and the liquid changes into a vapor.
We can conclude that CH4 has the weakest boiling point because the magnitude of London dispersion forces decreases with a decrease in molecule size.
Therefore, the shortest, most branched molecule in this given options will have the lowest boiling point.
Learn more about boiling point at: https://brainly.com/question/40140
#SPJ1
What is the name of the compound Br2S3?
(Bromodisulfanyl) Thiolohypobromite | Br2S3 - PubChem.The quantity of atoms in a molecule is indicated by numerical prefixes.
B2s chemistry: what is it?Undergraduate students known as B2s work alongside lab instructors in organic chemistry labs most often. By operating the lab when the lab instructor has to take a little break, responding to student inquiries, helping students pass samples through an instrument, etc., B2s ensure that the lab works smoothly.(Bromodisulfanyl) Thiolohypobromite | Br2S3 - PubChem.When naming molecular compounds, the stem of the first element's name is used first, followed by the suffix -ide, followed by the second element. The quantity of atoms in a molecule is indicated by numerical prefixes.To learn more about (Bromodisulfanyl) Thiolohypobromite refer to:
https://brainly.com/question/1327020
#SPJ4
consider the following figure. it indicates that a single amino acid substitution ______.
The sections that follow will first consider several major properties that are often used to group amino acids together.
Note that amino acids can be in more than one group, and that sometimes properties as different as ‘hydrophobic’ and ‘hydrophilic’ can be applied to the same amino acids.
Probably the most common broad division of amino acids is into those that prefer to be in an aqueous environment (hydrophilic) and those that do not (hydrophobic). The latter can be divided according to whether they have aliphatic or aromatic side chains.
A side chain is aromatic when it contains an aromatic ring system. The strict definition has to do with the number of electrons contained within the ring. Generally, aromatic ring systems are planar and electrons are shared over the whole ring structure. Phenylala- nine and tryptophan have very hydrophobic aromatic side chains, whereas tyrosine and histidine are less so.
To know more about amino acid here
https://brainly.com/question/28362783
#SPJ4
which two major body systems help regulate acid-base balance in the body? compare and contrast how the pathophysiology for each system works to compensate during times of acidosis and times of alkalosis.
two body functions that help regulate acid-base balance in body are the kidney & lungs that work continuously to help with regulatory oversight of acid base balance by excreting the excess acidic and basic ions.
Describe acid.A Brnsted-Lowry acid or Lewis acid is a molecule or ion that has the ability to donate a protons or establish a covalent bond with just an electron pair. Proton donors, also known as Brnsted-Lowry acids, are the first class of acids.
Why is it known as acid?The word "acid," which refers to the sour flavor and pungent odor of numerous acids, derives from the Latin word acidus, which meaning "sour." Examples: Because acetic acid and water are diluted, vinegar has a sour flavor. Citrus juice
To know more about acid visit :
https://brainly.com/question/29796621
#SPJ4
What would be the complete ground-state electron configuration for aluminum? Express the complete electron configurations using the caret symbol prior to the superscript and 1 space between different orbitals (ex: Li would be entered as 1s^2 2s^1). Do not use any parentheses in your configuration. Enter your configuration in the proper order.
The complete ground state configuration for the aluminum is 1s² 2s² 2p⁶ 3s² 3p¹. The atomic number of the aluminum is 13.
The atomic number of the Aluminum is 13. For the neutral atom of the Aluminum , it contains the 13 protons and the 13 electrons. The ground state electron configuration is 1s² 2s² 2p⁶ 3s² 3p¹. The noble has configuration for the aluminum is [Ne] 3s² 3p¹. The atom in the lower energy level is said to be in the ground state.
The electrons arranged according to their energy levels. The ground state electron configuration of the electrons around the nucleus with lower energy levels for the given atom.
To learn more about electron configuration here
https://brainly.com/question/15372175
#SPJ4
how to prepare pure dry crystals of sodium chloride
salt by using hydrochloric acid and sodium hydroxide (use thymolphthalein as an indicator)
When solutions of hydrochloric acid and sodium hydroxide react, they produce sodium chloride and water, and after the completion of the reaction leaves the resulting solution in a warm place. After the water evaporates from the solution and we get the sparkly crystal of NaCl.
What is a neutralization reaction?A neutralization reaction can be demonstrated as a kind of reaction where a basic solution and an acidic solution react with each other to create salt and water.
The acidic strength of the resulting solution can be determined from the pH of the neutralized reaction. When a strongly acidic solution is added to a strongly basic solution the salt produced can be neutral.
When hydrochloric acid reacts with sodium hydroxide (a strong base), the formed salt is NaCl and H₂O.
[tex]HCl + NaOH \longrightarrow NaCl + H_2O[/tex]
The use of indicator thymolphthalein tells about the completion of the chemical reaction. The dry crystals of sodium chloride can be obtained after the evaporation of water.
Learn more about neutralization reaction, here:
brainly.com/question/20038776
#SPJ1
Select the correct IUPAC name for the following organic substrate, including the Ror S designation where appropriate, and draw the major organic product(s) for the Syl reaction. Include wedge-and-dash bonds and draw hydrogen on a stereocenter.
The IUPAC name for the substrate is: a. 3-bromo-3,4-dimethylpentane b. (S)-3-bromo-3,4-dimethylpentane
c. 3-bromo-2,3-dimethylpentane d. (R)-3-bromo-2,3-dimethylpentane
(R)-3-bromo-2,3-dimethylpentane.
What does an organic chemist mean by a minor and major product?
The product that was created using Markovnikov's rule is considered to be the major product out of the two conceivable products.Most of the time, this substance will form (70%–95%).The minor product is the name for the substitute.
Which are the four main categories of organic compounds?Carbohydrates, lipids, protein, and nucleotides are organic molecules necessary for human function.
To know more about dimethylpentane visit:
https://brainly.com/question/13887419
SPJ4
Draw the expanded structural formula for the following condensed formula. (Draw all hydrogen atoms.)
CH3CH2COCH(CH3)2
A hydrogen atom is an atom of the chemical element hydrogen. The electrically neutral atom contains a single positively charged proton and a single negatively charged electron bound to the nucleus by the Coulomb force.
What do all hydrogen atoms have in common?Atomic hydrogen constitutes about 75% of the baryonic mass of the universe. In everyday life on Earth, isolated hydrogen atoms are extremely rare. Instead, a hydrogen atom tends to combine with other atoms in compounds, or with another hydrogen atom to form ordinary (diatomic) hydrogen gas, H2. "Atomic hydrogen" and "hydrogen atom" in ordinary English use have overlapping, yet distinct, meanings. For example, a water molecule contains two hydrogen atoms, but does not contain atomic hydrogen.shows that there is a discrete infinite set of states in which a hydrogen (or any) atom can exist, contrary to the predictions of classical physics. Attempts to develop a theoretical understanding of the states of the hydrogen atom have been important to the history of quantum mechanics, since all other atoms can be roughly understood by knowing in detail about this simplest atomic structure.To learn more about hydrogen refer to:
https://brainly.com/question/130662
#SPJ4
Which one of the following four metals would be displaced from the solution of its
salts by the other three metals?
a) Mg
B) Cu
C) Ag
d) Zn
The metal that would be displaced from the solution of its salts is option C) Ag
Silver has a higher standard electrode potential (reduction potential) than any of the other three metals. Therefore, each of them would remove (decrease) it from its salt solution.
Since Ag is less reactive than Mg, Zn, and Cu, the other three metals would displace silver (Ag) metals from the solution of its salts.
Learn more about metals at:
brainly.com/question/20570629
Draw 3-chloro-2-methyloxetane. Select Draw Rings More
Co oxidises to Co after reducing Ni to Ni (0). (III). Co is a reducing agent,
3Ni2+(aq)+2Co(s)⟶2Co3+(aq)+3Ni(s)
The charge that indicates an object's capacity to gain, lose, or share electrons is known as the oxidation number.
Increasing the number of oxidations is oxidation.
Co is oxidised, changing from Co(0) to Co. (III).
Decrease in oxidation number equals reduction.
Ni (II) is reduced to Ni2+ from Ni2+ (0).
An oxidising agent is something that reduces itself while oxidising others.
Ni2+ reduces itself to Ni after oxidising Co to Co (III) (0). Ni2+ is an oxidising agent, then.
A reducing agent is something that both reduces other things and oxidises itself.
Co oxidises to Co after reducing Ni to Ni (0). (III). Co is a reducing agent, then.
To learn more about reducing agent click here:
https://brainly.com/question/2890416
#SPJ4
After reducing Ni to Ni, Co oxidises to Co. (0). (III). Co is a decreasing agent. 3Ni2+(aq)+2Co(s)⟶2Co3+(aq)+3N The oxidation number is the charge shows an object's ability to receive, lose, share electrons.
Oxidation is the process of increasing the number of oxidations.Co undergoes oxidation, transforming from Co(0) to Co. Reduction is equal to a decrease in the oxidation number. From Ni2+, Ni (II) is reduced to Ni2+ (0). An oxidising agent is anything that oxidizes others while reducing itself. After oxidizing Co to Co (III), Ni2+ decreases to Ni (0). Ni2+ is therefore an oxidizing agent. A reducing agent is anything that both reduces and oxidizes other substances. After reducing Ni to Ni, Co oxidises to Co. (0). (III). Co is a decreasing agent.After reducing Ni to Ni, Co oxidises to Co. (0). (III). Co is a decreasing agent. 3Ni2+(aq)+2Co(s)⟶2Co3+(aq)+3N The oxidation number is the charge shows an object's ability to receive, lose, share electrons.
learn more about Oxidation here:
https://brainly.com/question/16976470
#SPJ4
Draw the Lewis dot structure for the molecule SiO4^-4. Determine the number of bonding pairs and long pairs on the central atom. What is the shape of the molecule? Be careful on counting the total number of electrons.
#bonding pairs:
#lone pairs:
Shape of the molecule:
The shape of the molecule is tetrahedral due to the 4 pairs of electrons around the silicon atom.
The Lewis dot structure for SiO4^-4 is shown below:
Si: O
:O: O
O
There are 8 bonding pairs and 4 lone pairs on the central atom, giving a total of 12 electrons. The shape of the molecule is tetrahedral.
1. The Lewis dot structure for SiO4^-4 is drawn by placing 4 oxygen atoms around the central atom (silicon) and connecting them with single bonds.
2. Each oxygen atom has 6 valence electrons, for a total of 24 electrons.
3. Silicon has 4 valence electrons, for a total of 28 electrons.
4. The 4 oxygen atoms form 8 bonding pairs with the silicon atom, leaving 4 lone pairs.
5. The total number of electrons around the central atom is 12 (8 bonding pairs and 4 lone pairs).
6. The shape of the molecule is tetrahedral due to the 4 pairs of electrons around the silicon atom.
learn more about molecule here
https://brainly.com/question/19556990
#SPJ4
Draw lewis structure for C5H10
The Lewis structure of C5H10 help us to visualize the valence electron and molecules whether they are present in bond or as lone pair.
Cyclopentane appears as a clear colorless liquid with a petroleum-like odor. Flash point of -35 °F. Less dense than water and insoluble in water. Vapors are heavier than air. Cyclopentane is a cycloalkane that consists of five carbons each bonded with two hydrogens above and below the plane. The parent of the class of cyclopentanes. It has a role as a non-polar solvent. It is a member of cyclopentanes, a cycloalkane and a volatile organic compound. Cyclopentane is an alicyclic compound with formula C5H10 . The electron dot structure helps us to visualize the valence electrons and molecules whether they are present in bond or as lone pair.
To learn more about Lewis structure please visit:
https://brainly.com/question/20300458
#SPJ4
2) Write the equilibrium-constant expression for the reaction in terms of [A], [B], [C], and [D] as needed.
The amount of reactant to product in a chemical reaction can be compared to derive the equilibrium constant, which is used to predict chemical behaviour.
What is equilibrium constant?The ratio of the amount of reactant to the amount of product that is used to predict the chemical behaviour of a reaction is known as the equilibrium constant for chemical reactions. The rate constants remain unchanged at a specific temperature.
The law of mass action states that for a system in equilibrium, K is related to the ratio of the equilibrium concentrations of the products to the reactant concentrations raised to their respective powers to match the coefficients in the equilibrium equation. The expression for the equilibrium constant is the ratio.
Therefore, the answer is:
To the stated response
[tex]$3 A_{(g)}+B_{(g)} \rightleftharpoons 2 C_{(g)}+2 D_{(g)}$[/tex]
A statement of the equilibrium constant will be
[tex]$K_c=\frac{\left[C^2 \cdot[D]^2\right.}{\left|A^3 \cdot\right| B \mid}$[/tex]
where A, B, C, and D are present in the following molar concentrations: [A], [B], [C], and [D].
The complete question is:
Write the equilibrium-constant expression for the reaction shown in terms of
[A],[B],[C],and [D].
3A(g)+B(g)↽−−⇀2C(g)+2D(g)
To learn more about equilibrium constant refer to:
https://brainly.com/question/19340344
#SPJ4
How would I solve this using Dimensional Analysis?
Answer:no idea
Explanation:
I js needed points
Sodium bisulfite converts bromine (Br2) to bromide (Br-). Sodium bisulfite is a(n). Choix unique.Lecteur immersif
(1 point)
Fe3+ + 3 e- → Fe
Fe → Fe3+ + 3 e-
Mg → Mg2+ + 2 e-
Mg2+ + 2 e- → Mg
Sodium bisulfite converts the bromine (Br₂) to the bromide (Br-). Sodium bisulfite is an reducing agent.
The reducing agents are the substances which will loses the electrons to the other substances in the redox redox reaction and it will get oxidized to the higher valency state. The Sodium bisulfite converts the bromine (Br₂) to the bromide (Br-) ion . Sodium bisulfite is called as an reducing agent.
The reactant that acts as reducing agent will it self get oxidizes. The one which will act as a oxidizing agent itself gets reduced. So, in the given reaction sodium bisulfite acts as reducing agents.
To learn about sodium bisulfite here
https://brainly.com/question/30078812
#SPJ4
Assume the Bohr model to determine the radius of the n = 8 orbit in a N6+ ion.
r = ? pm
-----------------------------------------------------
What is the energy in joules of a photon with a frequency of 7.95e+14 s-1? What is the energy in kilojoules of a mole of photons of this frequency? Express you answers to three significant digits.
E of single photon = ? J
E of mole of photons = ? kJ/mol
----------------------------------------------------------
Be carefull of the sign of your answers and express your numerical answers to four figures.
a) What is the energy of the n = 5 level of a H atom? J
b) What is the energy of the n = 9 level of a H atom? J.
c) What is deltacap.gifE for the n = 5 to n = 9 transition? J
1) Radius of the n = 8 orbit is 33730 pm. 2) 5.22 x 10^-19 J is the energy in kilojoules of a mole of photons of this frequency. 3) (a) energy is E = -8.7 x 10^-19 J, (b) energy is E = -2.7 x 10^-19 J, (c) energy is E = -6 x 10^-19 J
1. The Bohr model of the atom describes the electrons of an atom as being in specific energy levels (orbits) around the nucleus. The radius of each orbit is proportional to the principal quantum number (n) of the electron.
The radius of the n = 8 orbit in a N6+ ion can be calculated using the equation:
r = 0.529 x 10^-10 m x (n^2)
r = 0.529 x 10^-10 m x (8^2)
r = 0.529 x 10^-10 m x 64
r = 3.373 x 10^-9 m
r = 3.373 x 10^-9 m x 10^12 pm
r = 33730 pm
2. The energy of a photons can be calculated using the equation:
E = h x f
E = (6.626 x 10^-34 Js) x (7.95 x 10^14 s^-1)
E = 5.22 x 10^-19 J
3. To calculate the energy of a mole of photons, we need to know Avogadro's number (6.022 x 10^23 photons/mol)
Energy per mole of photons = (E of single photon) x (Avogadro's number)
Energy per mole of photons = (5.22 x 10^-19 J) x (6.022 x 10^23 photons/mol)
Energy per mole of photons = 3.15 x 10^5 J/mol
Energy per mole of photons = 315 kJ/mol
a) The energy of the n = 5 level of a H atom can be calculated using the equation:
E = -13.6 eV x (1/n^2)
E = -13.6 eV x (1/5^2)
E = -13.6 eV x 0.04
E = -0.544 eV
E = -0.544 eV x (1.60218 x 10^-19 J/eV)
E = -8.7 x 10^-19 J
b) The energy of the n = 9 level of a H atom can be calculated using the equation:
E = -13.6 eV x (1/n^2)
E = -13.6 eV x (1/9^2)
E = -13.6 eV x 0.0123
E = -0.167 eV
E = -0.167 eV x (1.60218 x 10^-19 J/eV)
E = -2.7 x 10^-19 J
c) The energy for the n = 5 to n = 9 transition can be calculated by subtracting the energy of the initial state from the energy of the final state.
E = Efinal - Einitial
E = (-2.7 x 10^-19 J) - (-8.7 x 10^-19 J)
E = -6 x 10^-19 J
To know more about photons please refer: https://brainly.com/question/28134171
#SPJ4
when ca2+ concentration in the blood becomes lower than normal, __________.
when ca2+ concentration in the blood becomes lower than normal,parathyroid hormone is released.
This drug is a synthetic version of the hormone parathyroid, which is naturally produced by your body's parathyroid glands. Your body's calcium and phosphorus levels are regulated and kept in balance by the parathyroid hormone. In order to address low blood calcium caused by insufficient parathyroid hormone, this drug is combined with calcium and vitamin D.More than 7,000 times less calcium ions are present in the intracellular fluid of cells than in the blood plasma.Serious negative effects from parathyroid hormone are possible. If you have any of the following symptoms due to elevated calcium levels: nausea, vomiting, constipation, excessive thirst or urination, muscular weakness, bone pain, disorientation, loss of energy, or fatigue, call your doctor right once. You could experience low calcium levels if you stop taking parathyroid hormone.
complete question:When Ca2+ concentration in the blood becomes lower than normal, __________.
parathyroid hormone is released
growth hormone is released
calcium salts deposit in the blood vessels
testosterone is released
learn more about ca2+ concentration Refer:brainly.com/question/29043613
#SPJ4
Which of the following is true about distillation boiling point determination? More than one answer may be correct.
O Keep boiling the sample until there is nothing left in the flask.
O The reduced pressure needs to be recorded if performing the distillation under vacuum.
O Impurities in the sample will not affect the boiling point.
O The sample should be as pure as possible before boiling point determination.
O The thermometer should be positioned with the tip immersed in the liquid.
The statements which true about distillation boiling point determination are:
The reduced pressure has to be recorded if performing the distillation under vacuum.The sample must be as pure as possible before boiling point determination.The thermometer must be positioned with the tip immersed in the liquid.What is distillation?Distillation is the process which happens when a liquid sample is volatilized to produce a vapor which is subsequently condensed to a liquid richer in the more volatile components of the initial sample. It is symbolized at its simplest when steam from a kettle turns deposited as drops of distilled water on a cold surface.
Regarding the distillation boiling point determination, the temperature at where a liquid's vapor pressure reaches equilibrium with atmospheric pressure is called the liquid's boiling point. To accomplish distillation at decreased pressure, it is needed to record the external pressure. The sample have to be as pure as is practical. When the contaminants are dissolved, the liquid's boiling point increases. Thus, the recorded boiling point will not be exact. And to measure temperature changes properly, the thermometer's tip has to be placed in the liquid.
Learn more about distillation at: https://brainly.com/question/29037176
#SPJ4
Why are chemists concerned with the rates of chemical reactions?! Select all that apply.O Reaction rates show how fast a reaction will reach equilibrium. O Reaction rates can indicate potential hazards, such as explosions. O Reaction rates dictate the productivity of chemical reactions. O Reaction rates indicate how quickly reactants will be consumed.
The rate of a chemical reaction is a measure of how fast the reaction is occurring. Knowing the rate of a reaction allows chemists to understand the reactivity of different compounds and predict the outcome.
Chemists are concerned with the rates of chemical reactions because:
Reaction rates show how fast a reaction will reach equilibrium.-Reaction rates can indicate potential hazards, such as explosions.-Reaction rates dictate the productivity of chemical reactions.-Reaction rates indicate how quickly reactants will be consumed.Learn more about Chemical Reaction here:
https://brainly.com/question/29762834
#SPJ4
What are the concentrations of carbon in a-ferrite and Fe3C at a temperature just below 727°C? You may want to use Animated Figure 9.24. (a) Ca i wt% || (b) CFe,C = i wt% Save for Later Attempts: 0 of 3 used
70% is the concentrations of carbon in a-ferrite and Fe3C at a temperature just below 727°C.
The compounds of metals are present in the form of oxides, Sulphides, carbonates, chlorides. The natural material in which the metals or their compounds are found in earth are called minerals. Some of the minerals may contain a large percentage of metal whereas others may contain only a small percentage. the concentrations of metal in seawater varies from place to place and often dependent on local conditions. Although most metals are generally low in seawater, this will depend on possible pollution, geochemistry and microbial activities. The best way is to compare your results to local literature. By this information, we can consider that 70% is the concentrations of carbon in a-ferrite and Fe3C at a temperature just below 727°C.
Learn more about Metal concentration:
brainly.com/question/2252254
#SPJ4
Consider the acid-base nature of barium cyanide, Ba(CN)2, when it is dissolved in water.
(1) What are the acid-base properties of the cation? _________acidicbasicneutral
(2) What are the acid-base properties of the anion? _________acidicbasicneutral
(3) Would an aqueous solution of barium cyanide be acidic, basic or neutral? _________acidicbasicneutral
1. The correct answer is basic. Barium cyanide, Ba(CN)2, is an ionic compound composed of a barium cation and a cyanide anion.
When it is dissolved in water, it will dissociate into barium cations and cyanide anions. The barium cation has a +2 charge, so it will accept two hydrogen ions from the water, forming the barium hydroxide ion, Ba(OH)2, making the barium cation basic in nature.
2. The correct answer is acidic. Barium cyanide, Ba(CN)2, is an ionic compound composed of a barium cation and a cyanide anion.
When it is dissolved in water, it will dissociate into barium cations and cyanide anions. The cyanide anion has a -1 charge, and will donate a single hydrogen ion to the water, forming the hydronium ion, H3O+, making the cyanide anion acidic in nature.
3. The correct answer is neutral. An aqueous solution of barium cyanide, Ba(CN)2, will be neutral. When the compound is dissolved in water, it will dissociate into barium cations and cyanide anions.
The barium cation will accept two hydrogen ions from the water, forming the barium hydroxide ion, Ba(OH)2, and the cyanide anion will donate one hydrogen ion to the water, forming the hydronium ion, H3O+. These two processes will cancel each other out, resulting in a neutral solution.
Learn more about acid-base:
https://brainly.com/question/15334816
#SPJ4
The formal charge on sulfur in (so4)2- is___. where the lewis structure of the ion is: A. 0 B.-2 C.-4 D.2
The formal charge on the sulfur atom in the Lewis structure is zero.
The charge that would be present on an atom in a molecule if all of the bonding electrons were distributed equally is known as the formal charge of the atom. For each atom in a Lewis structure, you should count how many electrons it "owns" in order to determine the formal charges. All of its lone pair electrons as well as 50% of its bonding electrons should be counted. Essentially, the formal charge of an atom is the difference between its valence electrons and its own electrons.
Valence electrons of Sulfur = It is present in Group VI A = 6 valence electrons
Bonding electrons = 2 single bonds + 2 double bonds = 2(2) + 2(4) = 12 electrons
Electrons without lone pairs are non-bonding electrons.
Formal charge = 6 – 0 – 12/2 = 6 – 0 – 6 = 6 – 6 = 0
Learn more about Formal Charge
brainly.com/question/2081051
#SPJ4
