To solve this, we must be knowing each and every concept behind fundamental force. Therefore, 18.33 × 10²⁶ kg is the mass of Jupiter.
What is fundamental force?Nature is governed by four fundamental or universal forces. All stuff in the universe would disintegrate in the absence of these forces. Any pull or push that causes an item to change its physical condition is referred to as force (in terms of motion or deformity).
Mathematically,
F = G × m₁ × m₂ / r²
G=universal gravitational constant =6.67 × 10⁻¹¹ N m²
m₂ = r² × F / G × m₁
m₂ = { ( 7.8 x 10¹¹ )² × ( 4 × 10²³ ) } / { ( 6.67 × 10⁻¹¹ ) × ( 2 x 10³⁰ ) }
m₂ = ( 60.84 × 10²² × 4 × 10²³) / ( 13.27 × 10¹⁹ )
m₂ = 18.33 × 10²⁶ kg
Therefore, 18.33 × 10²⁶ kg is the mass of Jupiter.
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Why does ninhydrin stain the skin blue? a. Skin contains amino acids. b. Ninhydrin is blue-colored c. Ninhydrin turns blue when warmed
Option A, Ninhydrin is a chemical that is used to detect the presence of amino acids in a sample. It reacts with the amino acids in a sample, such as skin, to form a complex that is blue in color.
Ninhydrin is a chemical that is used to detect the presence of amino acids in a sample. It reacts with the amino acids in a sample, such as skin, to form a complex that is blue in color. This is because when Ninhydrin reacts with an amino acid it forms a complex with the nitrogen in the amino group, and this complex is blue in color. It is also commonly used in forensic science to detect fingerprints, as fingerprints contain amino acids from the oils and sweat on the skin. The blue coloration of the skin is an indication of the presence of amino acids, which are found in many biological molecules such as proteins and enzymes.
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5.0 mol Al produces up to 2.5 mol Al2O3 and 6.0 mol O2 produces up to 4.0 mol Al2O3. Al2O3 102 g/mol What mass of Al2O3 forms?
Mole measure the number of elementary entities of a given substance that are present in a given sample. Therefore, 255g of Al[tex]_2[/tex]O[tex]_3[/tex] forms from 5.0 mol Al.
What is mole?The SI unit of amount of substance in chemistry is mole. The mole is used to measure the quantity or amount of substance. We know one mole of any element contains 6.022×10²³ atoms which is also called Avogadro number. The stoichiometry represents the number of moles.
Mathematically,
number of moles of 2Al[tex]_2[/tex]O[tex]_3[/tex] =given mass of 2Al[tex]_2[/tex]O[tex]_3[/tex]÷ molar mass of 2Al[tex]_2[/tex]O[tex]_3[/tex]
4Al + 3O[tex]_2[/tex] → 2Al[tex]_2[/tex]O[tex]_3[/tex]
mass of Al[tex]_2[/tex]O[tex]_3[/tex]=number of moles of Al[tex]_2[/tex]O[tex]_3[/tex]×molar mass of Al[tex]_2[/tex]O[tex]_3[/tex]
= 2.5× 102
= 255g
Therefore, 255g of Al[tex]_2[/tex]O[tex]_3[/tex] forms.
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what compound(s) do you expect to be in the distillate when the dehydration reaction is complete?
The compounds which are expected to be in the distillate when the dehydration reaction is complete is alkene and water.
The dehydration reaction is a reaction which involves the loss of water from the reacting molecule or ion. The combination of two molecules which includes the elimination of water molecules is known as dehydration molecule. When this dehydration reaction takes place the distillate is alkene and water. Alkene can be symbolized as C=C. The dehydration reaction builds molecules and generally require the energy for carrying out this process. Dehydration synthesis can be defined as the synthesis reactions which involve the formation of a new compound with the elimination of water molecules.
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A compound is used to treat iron deficiency in people. it contains 36.76% iron, 21.11% sulfur, and 42.13% oxygen. the empirical formula is fe s o .
The empirical formula of a sample containing 36.76% iron, 21.11% Sulphur, and 42.13% oxygen is FeO₄S.
The empirical formula, which is the ratio of subscripts of the least whole number of the elements present in the formula, is the most straightforward formula for a compound. The molecular formula specifies the precise number of every type of atom that makes up a molecule. It is an empirical formula if it has been simplified.
Iron = 36.76 / 56 = 0.65 / smallest value (0.65) = 1
Oxygen = 42.13/ 16 = 2.633/ 0.65 = 4
Sulphur = 21.11/ 32 = 0.65/0.65 = 1
The empirical formula of FeO₄S contains one iron atom, four oxygen atoms and one Sulphur atom.
Hence, empirical formula is molecular formula with numeric ratios.
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The empirical formula of the given compound that is used to treat iron deficiency in people is [tex]Fe_{1} S_{1} O_{4}[/tex] .
If a percentage is provided, we will assume that the total mass is 100 grammes.
So, the mass of each element is equal to the percentage given.
Mass of Fe 36.76 g =
Mass of S 21.11 g
Mass of O= 42.13 g
Step 1: convert given masses into moles.
Moles of Fe = given mass of Fe/molar mass of Fe
=36.76 g / 56 g/mole
=0.65moles
Moles of S =Given mass of S / molar mass of S
=21.11g/32g/mole
=0.65moles
Moles of O=Given mass of O / molar mass of O
=42.13g / 16g/mole
=2.63 moles
Step 2: Divide each mole value by the lowest calculated mole number to get the mole ratio.
For Fe = 0.65/ 0.65 = 1
For S = 0.65 / 0.65 = 1
For O = 2.63 / 0.65 = 4
The ratio of Fe: S: O=1:1:4
Hence the empirical formula is [tex]Fe_{1} S_{1} O_{4}[/tex]
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Describe how the potential energy of water molecules changes as water changes from a solids to a liquid.
Answer:
In a liquid form, water molecules have more energy than in a solid – they move around quickly, essentially bouncing off of one another. As the liquid cools down, the amount of potential energy is reduced and the molecules start to move slower.
Explanation:
As the liquid cools down, the amount of potential energy is reduced and the molecules start to move slower.
Give the IUPAC name for the following compound ch3(ch2)3ch(ch2ch2ch3)ch(ch3)2
The IUPAC name for the following compound ch3(ch2)3ch(ch2ch2ch3)ch(ch3)2 is 4-isoproyloctane.
What is IUPAC ?
The International Union of Pure and Applied Chemistry (IUPAC) is the foremost expert on chemical vocabulary, nomenclature (including the naming of new elements in the periodic table), standardized measuring techniques, atomic weights, and many other critically analysed data.
What is compound ?
A compound in chemistry is a material that is created when two or more separate chemical elements are mixed in a specific order. The interaction of the elements creates chemical connections that are challenging to break. Shared or exchanged electrons between atoms cause the formation of these bonds.
The longest chain consists of eight carbon atoms, which means the root name of the compound is octane, and one isopropyl group is attached at the fourth position. Therefore, its IUPAC name is 4-isopropyloctane.
The naming of the compound is done on the basis of the rules of IUPAC nomenclature. There is only one isopropyl substituent present in the carbon chain at the fourth position, therefore, its IUPAC name is 4-isopropyloctane.
The concept used to solve this question is IUPAC nomenclature.
The name of the compound is determined by IUPAC nomenclature. IUPAC stands for international union of pure and applied chemistry. IUPAC has given a nomenclature to name organic compounds. The IUPAC name consists of three parts: root name, prefix, and suffix.
The three parts of an IUPAC name are root name, prefix, and suffix. The longest chain tells the root name. Prefix tells the position and name of the substitutions present on the longest chain. Suffix tells the functional group present in the structure.
The IUPAC nomenclature rules are as follows:
1) First, determine the longest carbon chain containing the functional group. In the case of alkene or alkyne, the double or triple bond must have the lowest possible number.
2) The parent name of the carbon chain is derived from the respective hydrocarbon, and the suffix ‘-ene’ is added for an alkene functional group and the suffix ‘-yne’ is added for an alkyne functional group
3) If there are different substituents, then their names are prefixed in the alphabetical order before the parent name.
Therefore, the IUPAC name for the following compound ch3(ch2)3ch(ch2ch2ch3)ch(ch3)2 is 4-isoproyloctane.
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The IUPAC name of the compound ch3(ch2)3ch(ch2ch2ch3)ch(ch3)2 is 4-isoproyloctane.
What is IUPAC nomenclature?
The name of the compound is determined by IUPAC nomenclature. International Union of Pure and Applied Chemistry is referred to as IUPAC. IUPAC has given a nomenclature to name organic compounds. The root name, prefix, and suffix are the three components of an IUPAC name. The longest chain tells the root name. The longest chain's prefix identifies the location and name of any substitutions. The suffix identifies the structural functional group.
The naming of the compound is done on the basis of the rules of IUPAC nomenclature. There is only one isopropyl substituent present in the carbon chain at the fourth position. The longest chain consists of eight carbon atoms, which means the root name of the compound is octane, and one isopropyl group is attached at the fourth position. Therefore, its IUPAC name is 4-isopropyloctane.
Hence, 4-isoproyloctane is the IUPAC name of the compound ch3(ch2)3ch(ch2ch2ch3)ch(ch3)2.
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An energy drink contains 106 calories for 8oz. How many calories are in a larger 12oz can of the drink?.
A bigger 12 ounces of something like the drink contains 159 calories, according to the provided statement.
What do food calories mean?Calories are the units of energy used by your body during food digestion and absorption. A meal might provide your body extra energy if it has more calories. Your body stores excess calories and body fat when you consume more nutrients than you need. Even foods without fat might have a number of fat.
The 106 calories per 8 ounces of a clean energy drink are advertised.
Consequently, 106/8 = 13.25
Thus 13.25 calories per ounce.
13.25 * 12 = 159
The drink has 159 calories per 12 ounces.
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The complete question is-
A new energy drink advertises 106 calories for 8 oz. How any calories are in 12 oz of the drink?
If the atomic mass unit (AMU) is the average mass of all the isotopes of an element; what is the mass number of an element?
Answer:
If this help please set brainly brainliest.
The mass number of an element is the sum of the number of protons and neutrons in the nucleus of an atom of that element. It is typically represented by the symbol A. For example, the mass number of carbon-12, which is one of the stable isotopes of carbon, is 12 because it has 6 protons and 6 neutrons in its nucleus. The atomic mass unit (AMU) is a unit of mass that is used to express the masses of atoms and molecules. It is defined as 1/12 the mass of a carbon-12 atom, which is approximately 1.66 x 10^-27 kilograms. Isotopes are atoms of the same element that have the same number of protons in their nuclei but a different number of neutrons. Because they have the same number of protons, they have the same atomic number and are therefore the same element. However, because they have a different number of neutrons, they have a different mass number and therefore a slightly different atomic mass. The atomic mass of an element is usually given as the average mass of all of its isotopes, taking into account their natural abundances.
Which of the following show the formula unit mass of ammonium sulphate (NH42SO? Atomic
mass of N-14, H-1, S-32, 0-16 )
The formula unit mass of ammonium sulphate [(NH₄)₂SO₄] is 132g/mol (option D).
What is formula unit mass?Formula unit mass of a compound signifies the total sum of the atomic masses of all the atoms present in the given compound.
It is calculated by summing the atomic masses of each element that makes up a compound. According to this question, ammonium sulphate with the chemical formula; [(NH₄)₂SO₄] is given.
Since; N = 14, H = 1, S = 32, O = 16, the formula unit mass can be calculated as follows:
{14 + 1(4)}2 + 32 + 16(4)
36 + 32 + 64
= 132g/mol
Therefore, 132g/mol is the formula unit mass of ammonium sulphate.
The options to the incomplete question are as follows;
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How does the electron-cloud model describe electrons?
Electron-cloud model shows a many electrons system where the nucleus is surrounded by a cloud of electrons.
What is the electron-cloud model?It shows a many electrons structure where the nucleus is nearby a cloud of electrons. He based it on Heisenberg's variability principle and quantum mechanics. It explains that there the electron has no required location however we can only give the around where the electron cloud would be most likely found.
The electron cloud has both kinetic energy and momentum, yet there is no motion. The cloud is superbly static. The electron does not "orbit" the proton at all – it surrounds it like a fog.
So we can conclude that an electron cloud is an area all over the nucleus of an atom where electrons are most likely to be found.
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What mass of ammonium chloride, NH4Cl, (Ka = 5.6 x 10^-10) must be added to exactly 500mL of 0.10M NH3 solution to give a solution with a pH of 9.00?
The mass of 4.77g of ammonium chloride must be added to give a solution. This is calculate by using the concept of Henderson-Hasselbalch equation.
To solve we can use the concept based on the chemical equilibrium. The pH of solution is used to determine acidity and basicity of a solution. To determine the pH of an acidic buffer solution, given certain acid-base concentrations the concept used to solve this problem is based on the Henderson-Hasselbalch equation and calculation of molar mass on the basis of molarity. The Henderson-Hasselbalch equation is as follows:
pH = pKa + log ([conjugate acid ] / [base])
The Henderson-Hasselbalch equation is used to the concentration of ammonium ion. Fraction of concentration of ammonia to that of concentration of ammonium ion is calculated using Henderson-Hasselbalch equation. Further, concentration of ammonia is substituted to calculate the concentration of ammonium chloride.
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write a partial decay series for at-217 undergoing the following sequential decays: α, β, α, β.
²¹⁷₈₅At ⇒ ₂⁴ He + ₈₃²¹³Bi
²¹³₈₃Bi ⇒ ⁰e + ²¹³₃Po
Decay series the sequence of radioactive son nuclides that are formed by the radioactive decay of a parent nuclide to a final, stable son nuclide. For illustration, uranium has three naturally being isotopes, 238 U, 235 U, and 234 U, all of which are radioactive. Thorium exists substantially as one isotope( 232 Th) which is also radioactive.
In nuclear wisdom, the decay chain refers to a series of radioactive decays of different radioactive decay products as a successional series of metamorphoses. It's also known as a" radioactive waterfall". utmost radioisotopes don't decay directly to a stable state, but rather suffer a series of decays until ultimately a stable isotope is reached.
Decay stages are appertained to by their relationship to former or posterior stages. A parent isotope is one that undergoes decay to form a son isotope. One illustration of this is uranium (infinitesimal number 92) decaying into thorium (infinitesimal number 90). The son isotope may be stable, or it may decay to form a son isotope of its own. The son of a son isotope is occasionally called a granddaughter isotope.
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The 3p subshell in the ground state of atomic xenon contains __________ electrons.
A) 2
B) 6
C) 8
D) 10
E) 36
The 3p subshell in the ground state of atomic xenon contains 6 electrons. The Xe : 4d¹⁰ 5s² 5p⁶ with 54.
The atomic number of the xenon is 54. The ground state electron configuration is the electron arrangement around nucleus with stable and the lower energy level. The outer shell electron configuration of the xenon is 4d¹⁰ 5s² 5p⁶. The 3p is the lower energy as compared to the orbitals of the outer shell. According to this the electrons is the 6 electrons.
Thus, the electrons in the 3p subshell in the ground state of the atomic xenon is 6 electrons.
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Pb2+ (aq) + Mg (s) --> Pb (s) + Mg2+ (aq) If [Pb2+] = 0.10 M and [Mg2+] = 2.0 M, calculate the cell potential for this system. Please show your work for credit
As a result, the system's potential cell is 3.0223 volts.
What is magnesium(Mg)?The atomic number 12 and letter Mg serve as the symbol for the chemical element magnesium. It is a glossy, grey metal with a low melting point, high chemical reactivity, and a low density. It only naturally occurs in mixtures with other elements, just like the other alkaline earth metals, and it almost always has an oxidation state of +2.
What foods contain magnesium?Magnesium and Nutritional Health
• Magnesium-rich foods include whole grains and leafy vegetables in dark green hues. Additionally, yoghurt and low-fat milk also contain magnesium.
• Magnesium is found in dried beans and legumes including peanuts, baked beans, lentils, and soybeans as well as in nuts like almonds and cashews.
As a result, the following is the work's credit:
E_Cell^°=E_Cathode^°-E_Anode^°
=0.80-(-2.37)=3.17 volt
Cell reaction, Mg+2Ag+→2Ag+Mg_2+
E_Cell=E_Cell^°-n0.0591log[Ag+]_2 Mg_2+
=3.17-20.0591log[1×10_(-3) ]_2 0.2
=3.17-0.1566=3.0134volt
when mg2+=0.10M
E_Cell=E_Cell^°-20.0591log[0.10×10_(-3) ]_2 0,1
=(3.17-0.1477)volt
=3.0223volt
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Which subshell letter corresponds to a 4-leaf clover orbital pattern? O A.d O B.p O C.s O D. F O E. not enough information
d subshell letter corresponds to a 4-leaf clover orbital pattern.
d subshell is more complex than s subshell and p subshell. s subshell has only one orbital, meaning it can contain only 2 electrons. It is sphere shaped. p subshell has three orbitals, meaning it can contain 2x3 = 6 electrons. It is dum-bell shaped. Whereas, d subshell has 5 orbitals, meaning that it can contain 2x5 = 10 electrons. It is double dum-bell shaped, which can otherwise, be also called clover leaf shaped. The positioning of the orbitals depends upon the axis of approach, depending on which there can be the following types of orbitals : dx-y , dy-z , dz-x and dz2. Out of these, dx-y , dy-z, dz-x and dx2-y2 are clearly clover shaped. Each orbital can accommodate 2 electrons. Therefore, these 5 orbitals of d subshell can accommodate total 10 electrons.
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A sample originally contains 21 grams of a radioactive isotope. After 45 days, 17.3 grams of the isotope remain in the sample. What is the half-life of the isotope
The required half-life of the given radioactive isotope is 157.5 days.
The mass of radioactive isotope =21 g.
After 45 days,
mass of the isotope remain in the sample= 17.3 grams.
The half-life of the element is defined as the time span in which the element grows or decays half of its whole composition of growth and decay.
here,
equation of the radioactive decay is given as,
A = A'αⁿ
Now put
A = 17.3,
A' = 21
n = 45
so by putting the values in the equation we will get the answer as follows
17.3 = 21 α⁴⁵
[17.3/21]1/⁴⁵ = α
Again,
A = A'αⁿ
For half-life Put A = 21 / 2 = 10.5
10.5 = 21 [(17.3/21)¹/⁴⁵]ⁿ
[10.5/21]⁴⁵ = [17.3/21]ⁿ
taking log,
45 log[1/2] = n log[0.82]
45 × 3.5 = n
n = 157.5 days,
Thus, the required half-life of the given radioactive isotope is 157.5 days.
Your question is incomplete most probably your full question was
A sample originally contains 21 grams of a radioactive isotope. After 45 days, 17.3 grams of the isotope remain in the sample.
What is the half-life of the isotope?
Round your answer to the nearest day
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An impact crater forms when a meteor hits the earth’s surface with enough mass and velocity. A maar is a volcanic crater that forms when magma interacts with groundwater and causes a small explosion. Which statement about impact craters and maars is correct?
A) Both impact craters and maars form over short periods of time.
B) Impact craters form over short periods of time, and maars form over long periods of time.
C) Both impact craters and maars form over long periods of time.
D) Impact craters form over long periods of time, and maars form over short periods of time.
The statement that is correct about impact craters and maars is that impact craters form over short periods of time, and maars form over long periods of time. So the correct option is B.
What are impact crater and maars?Maars are those volcanic craters that will form when the magma touches the water that will be in the underground area, producing an explosion formed by steam. It can be formed by one or more volcanic explosions that will release steam, water, ash, and magmatic material.
As for the impact crater, it is a depression that will be left on the surface of the planet given by the collapse of a planetary body. They're going to have raised edges and their floor will be lower, because it's going to be caused by this collapse instead of an internal explosion.
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Was used as an indicator because it is colorless in solutions and pink in solutions.
Phenolphthalein is often used as an indicator in acid–base titrations. For this application, it turns colorless in acidic solutions and pink in basic solutions.
Because it is colourless by nature, phenolphthalein functions differently from litmus paper. In an alkaline solution or base, it also turns pink. Additionally, the substance is colourless in acids but begins to become pink around pH 8.2 and keeps turning deep purple in strong bases. In an acidic solution, phenolphthalein is colourless, whereas in an alkaline solution, it produces a pink colour. In an alkaline solution, turmeric turns a rich red colour. In an alkane solution, methyl orange turns yellow in colour. In an alkaline solution, litmus paper changes color from red to blue.
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Explain why SbCl5 is nonpolar, but SbCl3 is polar
SbCl5 is non polar in nature due to resultant dipole is zero. But SbCl3 is polar because the resultant dipole moment is finite.
Why SbCl5 is a nonpolar molecule?Since there will be no net vector summation of bond moments, SbCl5 is a non-polar molecule. The four C-Cl dipoles of the molecule CCl4 cancel each other out due to its tetrahedral form, making it a nonpolar molecule. The PCl3 molecule has a trigonal pyramidal form due to its tetrahedral electron geometry, which consists of three linked atoms and one lone pair of electrons. A polar molecule is HCl. This occurs because the more electronegative Chlorine (Cl) atom in the HCl molecule does not equally share the bonding electrons with the hydrogen atom (H). However, H2 and Cl2 are non-polar because both atoms in the molecule H2 and Cl2 have similar electronegativity.To learn more about nonpolar molecule refer to:
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The combustion of propyne, C3H4, releases heat when it burns according to the following equation:
C3H4(g)+4O2(g)⟶Δ3CO2(g)+2H2O(g)
How many grams of water are produced from the complete reaction of 61.4 g of O2?
How many grams of CO2 are produced from the complete reaction of 89.1 of C3H4?
If the reaction in part c produces 136 g of CO2, what is the percent yield of CO2 for the reaction?
A hydrocarbon known by the chemical formula C3H4, propane may burn when oxygen is present, a process known as combustion.
Which equation serves as the combustion formula?Along with heat and light, the reaction frequently produces both. Fuel + O2 CO2 + H2O is the general formula for an entire combustion reaction.A hydrocarbon known by the chemical formula C3H4, propane may burn when oxygen is present, a process known as combustion. The size and type of the hydrocarbon molecules, the amount of oxygen present, and the temperature are some of the variables that affect the kinds of products that are produced during a combustion reaction.The size and type of the hydrocarbon molecules, the amount of oxygen present, and the temperature are some of the variables that affect the kinds of products that are produced during a combustion reaction.To learn more about combustion refer to:
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Draw the dipeptide alanylvaline. Consult the table of amino acids for amino acid structures. Inclu
Dipeptide alanylvaline is an amino compound with peptide-peptide bond. It has the structure below.
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Avogadro's number is the number of particles in one gram of a carbon-12 atom. true false
False.
12 grams of carbon-12 constitutes 1 mole of carbon. 1 mole of any substance contains Avogadro number of particles.
A mole is a unit of measurement in chemistry.
one mole of something is equal to as many of that something as there are atoms in 12 grams of the isotope carbon-12.
Avogadro’s wide variety, the wide variety of gadgets in a single mole of any substance (described as its molecular weight in grams), is the same as 6.02214076 × 1023. The gadgets can be electrons, atoms, ions, or molecules, relying on the character of the substance and the individual of the reaction.
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Answer: False
Explanation: Did the exam
In the presence of 55.0 moles of oxygen how many moles of iron (III) oxide can be produced?
55.0 moles of iron (III) oxide can be produced.
What is iron ?
Iron is an element, represented by the symbol Fe, that is essential for life and is the most abundant metal on Earth. It is found in many minerals, including hematite, magnetite, limonite, and siderite. Iron is used to make steel, which is used in the construction of buildings, bridges, and other infrastructure.
It is also used to make cast iron and ferromagnetic alloys, which are used in aircraft engines and other machinery. Iron is also involved in several biochemical processes in the body, such as the production of hemoglobin, which helps transport oxygen to cells.
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TTACGGAACCT it says what would be the complementary strand in the DNA molecule be for this sequence, how do you know?
I need help
TTACGGAACCT would be the complementary strand in the DNA molecule of AATGCCTTGGA because it depends on the pairs between nucleotides in the double helix.
What is the base pairing rule in the DNA sequence?The base pairing rule in the DNA sequence is indicated by the interaction between Adenine or A with Thymine or T, and Gunaine or G and Cytosine or C in the DNA.
Therefore, with this data, we can see that the base pairing rules in the DNA sequence is dictated by the interaction of the nucleotides in the double helix.
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The tragic death of Michael Jackson occurred in June of 2009. The following statements were taken from his autopsy report
as the manner, cause & mechanism of death. Which is the cause of death?
I acute propafol intoxication
Il homicide
III respiratory arrest
AI
4x B 11
4x C
4x D
none of these
Answer:
acute propafol intoxication
Explanation:
acute propafol intoxication
The following molecule is best described as CH3-CH2-CH2-CH2
Answer:
Organic Compound
Explanation:
Copper reacts with oxygen to produce copper oxide.
63.5 g of copper produces 79.5 g of copper oxide.
Calculate the mass of copper oxide produced when 0.50 g of copper
reacts with oxygen.
Answer:
0.626 grams (in 3sf)
Explanation:
Need to make use of the formula Moles = Mass/ Ar and Moles = Mass/ Mr twice to obtain the answer.
copper oxide is the same as copper(ii) oxide.
Oxidation state of oxygen in compounds is always -2 and hence oxidation state of Cu is +2.
Equation of the reaction: 2Cu(s) + O2(g) -> 2CuO(s)
Moles of copper = 0.50/63.5 moles
= 7.87 x 10^-3 moles
Since the question does not state any mass of oxygen, we assume that copper is the limiting reagent of the reaction and oxygen is hence used in excess.
From the equation, mole ratio of Copper : Copper Oxide is 2:2 which is the same as 1:1 .
Moles of copper oxide formed = Moles of Copper reacted
= 7.87 x 10^-3 moles
Mr of copper oxide = 63.5 + 16 = 79.5
Mass of copper oxide formed = 7.87 x 10^-3 x 79.5
= 0.62598 grams
= 0.626 grams (3sf)
IF4+ shape octahedral seesaw square pyramidal tetrahedral trigonal pyramidal hybridization ideal bond angle(s) 60degree 90 degree 109.5 degree 120 degree deviation from ideal angle(s) 60 degree 90 degree 109.5 degree 120 degree none AsCl4- shape octahedral seesaw square pyramidal tetrahedral trigonal pyramidal hybridization ideal bond ar 60 degree 90 degree 109.5 degree 120 degree deviation from ideal angle(s) < 60 degree < 90 degree < 109.5 degree < 120 degree none
IF4+ is an ion with a tetrahedral shape and a hybridization of sp3. The ideal bond angle is 109.5 degrees and there is no deviation from this ideal angle. AsCl4- is an ion with an octahedral shape and a hybridization of sp3d2. The ideal bond angles are 90 degrees and there is deviation from this ideal angle, with angles less than 90 degrees.
The shape of a molecule is determined by the arrangement of its atoms in space and the number of electron pairs around the central atom. The hybridization of a molecule refers to the mixing of atomic orbitals to form new hybrid orbitals that are used for bonding. The bond angles in a molecule are determined by the repulsion between electron pairs, with ideal angles being based on the arrangement of the electron pairs. In the case of IF4+ and AsCl4-, the deviation from the ideal angles is a result of the presence of lone pairs of electrons, which change the angles due to their repulsion with bonding electrons.
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Calculate the wavelength in nm of a wave that has an energy of 6.7x 10^-19 J. Be sure to show all work, and include units!
A wave that has an energy of 6.7x 10-19 J will have a wavelength of 296 nm.
Is the relationship between energy and wavelength linear?Inversely correlated with wavelength is the amount of energy, which is directly proportional to the electromagnetic frequency of the photon. The frequency of a photon determines its energy. In other words, the energy of a photon decreases with increasing wavelength.
How do energy, wavelength, and frequency relate to one another?The energy (E) and frequency (F) of a wavelength diminish as it grows in size. You might conclude from these equations that the wavelength shortens as frequency increases. Longer wavelengths result from a falling frequency. The two main categories of waves are electromagnetic and mechanical.
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Arrange the rocks from oldest to youngest, and put a description of the rocks in the box. Follow the instructions that are shown in the images down below.
Matter are anything that is made up of atoms. The quantity of matter can be observed only on the basis of mass and volume calculation. Therefore, in below given ways we can arrange the rocks from oldest to youngest.
What is matter?Matter is a substance that has some mass and can occupy some volume. The matter is mainly used in science. Matter can be solid, liquid or gas.
Matter is anything that is made up of atoms. Anything around us that can be physically seen and touched are matter. Ice, water and water vapors are example of matter.
The law of deposition states that the freshest layers are at the surface and the longest are at the bottom. Throughout the canyon, distinct rock strata, for example the Coconino Limestone, are matched. According to the law of lateral continuity, these rock strata were originally united.
Therefore, in above way we can arrange the rocks from oldest to youngest.
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