I NEED HELP ASAP FOR ALL OF #13

An atom with a mass number of 3 and a neutral charge would be a tritium atom.

A chemical element is uniquely defined by its atoms, which are tiny pieces of matter. An atom is made up of a central nucleus and one or more negatively charged electrons that orbit it. The positively charged, relatively heavy protons and neutrons that make up the nucleus may be present.Each atom is made up of a nucleus and one or more electrons that are bound to it. One or more protons and numerous neutrons make up the nucleus.

A radioactive hydrogen isotope with a half-life of about 12 years is known as tritium or hydrogen-3. Tritium's nucleus has one proton and two neutrons, compared to the common isotope hydrogen-1's nucleus, which has one proton and zero neutrons, and hydrogen-2's nucleus, which has one proton and one neutron.

Tritium is a radioactive isotope of hydrogen, with one proton in its nucleus and two neutrons. Its chemical symbol is "H-3".

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The pain medication should the vet student give the injured cow will give about 2.94mg.

Non-steroidal anti-inflammatory drugs (NSAIDs), which are available as injections, pills to take orally, or a liquid to pour on the affected area, are the most popular pain relievers for cattle. Short-term pain management is another application for steroids, according to Funk.

In the treatment of pain brought on by arthritis or following surgery in dogs and cats, non-steroidal anti-inflammatory drugs are among the most popular and efficient medications. This group of medicines includes the brands Rimadyl, Metacam, Dermaxx, and Etogesic.

Given information,

For every 100 pounds 0.2grams

1473 pounds how many grams?

mg of pain medication = 1473 × 0.2/100

mg of pain medication = 2.94mg.

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Fe2+ is the reducing agent in the reaction Cu + Fe → Cu + Fe2+

In a redox reaction, a reducing agent is a species that loses electrons and is oxidized, while an oxidizing agent is a species that gains electrons and is reduced. In this reaction, the Fe is oxidized and loses electrons to form Fe2+, which means it is the reducing agent.

A redox reaction is a chemical reaction in which oxidation and reduction occur simultaneously. An oxidizing agent gains electrons and is reduced, while a reducing agent loses electrons and is oxidized.

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Answer:

Filtration

explanation:

Filtration is a separation method used to separate out pure substances in mixtures comprised of particles—some of which are large enough in size to be captured with a porous material. Particle size can vary considerably, given the type of mixture. For instance, stream water is a mixture that contains naturally occurring biological organisms like bacteria, viruses, and protozoa. Some water filters can filter out bacteria, the length of which are on the order of 1 micron. Other mixtures, like soil, have relatively large particle sizes, which can be filtered through something like a coffee filter.

A pure substance is one that cannot change state or divide into other substances, except for a chemical reaction.

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From a 4.0 mg sample, 0.50 mg of bromine is still active after 75 minutes.

Determine the number of times the radioisotope's disintegration occurred.

number of periods =[tex]\frac{time}{half life}[/tex]

number of periods =    [tex]\frac{75min}{25min}[/tex]     = 3

Each time, half of the initial quantity disappears.

4.0mg → [tex]\frac{4.0}{2}[/tex]   →  [tex]\frac{4.0}{4}[/tex]  →  [tex]\frac{4.0}{8}[/tex] = 0.50mg

Keep in mind that each arrow denotes one interval.

The amount of time it takes for the concentration of a given reactant to reach 50% of its initial concentration is known as the half-life of a chemical reaction (i.e., the time taken for the reactant concentration to reach half of its initial value). It is commonly expressed in seconds and is represented by the sign "t1/2."

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The system's increased disorder is balanced by the energy needed for vaporization. Due to the fact that δg = 0, the liquid and vapor are in an equilibrium, which is true for any liquid at its boiling point under normal circumstances.

The increase in systemic disorder is balanced by the energy needed for the vaporization process. Therefore, δg is equal to 0, which indicates that the liquid and vapor are in equilibrium. Under normal circumstances, any liquid at its boiling point.

A chemical reaction's general direction is determined by the sign of δg, which also indicates whether or not a reaction is spontaneous. When δg is equal to 0, it is clear that the system is in a state of general equilibrium. None of the reactions show a net change in either the forward or reverse direction.

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The covalent compounds do not have the same properties as the ionic compounds so they must give them to us.

We know that the way that a compound would behave would depend on the kind of bonds that we have in the molecules of the substance that we have.

Let it be known that the ionic bonds are found in the compounds that are soluble in water and do have a high m,elting and boiuling npoint which means that they can be identified when they are disolved in water as well as when they are heated.

The covalent compounds do lack all of these properties and as such they can not be easily identified as we can identify the ionic compounds. This is the difference that exists between the ionic compounds and the covalent compounds that we know about.

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OCH molecule will have a net dipole.

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what element is defined by the following information ?

p+ =11 n degr =12 e-=11

The element that is defined by the following information p+ =11 n degr =12 e-=11 is sodium (Na).

p+ = 11: The atomic number of an element represents the number of protons in the nucleus of an atom of that element. The atomic number of sodium is 11. n degr = 12: The number of neutrons in the nucleus of an atom of an element is referred to as the neutron number or neutron degree. The neutron number of sodium is 12.e- = 11: The number of electrons in the neutral atom of an element is equal to the atomic number. The number of electrons in the neutral atom of sodium is 11. Together, these information gives the atomic number, neutron number and electron number of sodium.

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If calcium reacts with a nonmetal, the charge of the calcium cation be +2. Calcium is metal and when it reacts with non metal ionic compound is formed.

The term non-metals are defined as elements on the right side of the periodic table. Non-metals may be gases, liquids or solids. Non-metals are dull, not shiny like metals. Calcium is an example of a non-metal.

When the calcium donates its electrons, it becomes electron-deficient species and has 2 more protons than electrons. That positively charged calcium ion is called as a cation.  

Calcium donated two electrons to the nonmetal and it has +2 charge.

Thus, If calcium reacts with a nonmetal, the charge of the calcium cation be +2.

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Answer:

[tex]C{3}Cl{3}N{3}O{3}\\[/tex]

Explanation:

Isocyanuric acid is C3H3N3O3.  The "trichloro" means that there are also 3 Cl atoms attached.  They likely replace the hydrogens, especially since the H's also form a single bond.  So replace the 3 H's with 3 Cl's:

              Isocyanuric Acid:  C3H3N3O3

Trichlioroisocyanuric acid:  C3Cl3N3O3

3C = 3*12 = 36

3Cl = 3*35.45 = 106.4

3N = 3*14 = 42

3O = 3*16 = 48

Total is 232.40 g/mole.  This matches the provided molar mass figure of 232.41 g/mole.

Answer:

0.756 J/g°C

Explanation:

The specific heat capacity of any material is defined as the quantity of heat (J) absorbed per unit of mass (kg) with an increase in temperature is 1 °C.

Specific heat capacity is defined as:

[tex]S = \frac{Q}{m*deltaT}[/tex]

given, Q = 42J, m(mass) = 3.1g and ΔT = 17.9 °C

[tex]S = \frac{42.0}{3.1*17.9}[/tex]

S = 0.756 J/g°C

The rate constant is 0.33 M-²s-¹.

One or more reagents and one or more product will always be present in a chemical reaction. The concentration of each of the reagents present may affect how quickly the reaction to create these products proceeds. The rate law describes this reliance. Each reactant concentration phrase in this law is given an exponent termed an order, which can have a value that is positive, negative, fractional, or zero. These ordering must be established through numerous experimental trials, unless the reaction is a simple one-step reaction. Finding the rate constant of the rate law follows the determination of these order values.

2a + 2b + c ⟶ d + 3e

For this reaction rate law can be written as,

rate = k(a)^x(b)^y(c)^z

Where x, y, z are reactant concentration orders,

To find the reaction orders we need to select a pair of trails which only one reactant varies,

For reactant a with an order of x we can select,

rate2/rate1 = ([a]2/[a]1)^x

9.6 × 10-⁵/6.0 × 10-⁶ = (0.096/0.024)^x

16 = 4^x

x = 2

Now for reactant b with order of y,

rate4/rate2 = ([b]4/[b]2)^y([a]4/[a]2)²

1.5 × 10-⁶/9.6 × 10-⁵ = (0.170/0.085)^y(0.012/0.096)²

1/64 = 2^y 1/64

y = 0

Now for reactant c with order of z,

rate3/rate1 = ([c]3/[c]1)^z ([b]3/[b]1)⁰

1.5 × 10-⁵/6.0 × 10-⁶ = (0.080/0.032)^z

2.5 = 2.5^z

z = 1

The reactant orders are x,y,z = 2,0,1.

we can use trail 1 to find rate constant,

rate = k[a]²[c]

6.0 × 10-⁶ M/s = k(0.024M)²(0.032M)

k = 0.33 M-²s-¹.

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A. The overall reaction order for the reaction NO + O3 → NO2 + O2 is second order.

B. The units of the rate constant k for this reaction are L/mol*s, where L is the unit of concentration, mol is the unit of amount of substance and s is the unit of time.

C. If [NO] were doubled, the rate of the reaction would also double. This is because the rate of the reaction is directly proportional to the concentration of NO. Therefore, doubling the concentration of NO would double the rate of the reaction.

D. If [O3] were doubled, the rate of the reaction would also double. This is because the rate of the reaction is directly proportional to the concentration of O3. Therefore, doubling the concentration of O3 would double the rate of the reaction.

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A bromide ion (Br-) acts as the nucleophile and attacks the carbon atom that was previously bonded to the leaving group (oxygen).This forms a covalent bond and the leaving group (oxygen) is displaced from the carbon atom. The curved arrows below show the movement of electrons in this process.

A) 2-Bromo-2-methylpropan-1-ol

B)The last step of the mechanism is a nucleophilic substitution reaction, where the bromide ion (Br-) acts as the nucleophile and attacks the carbon atom that was previously bonded to the leaving group (oxygen in this case). This forms a covalent bond and the leaving group (oxygen) is displaced from the carbon atom. The curved arrows below show the movement of electrons in this process:

O        Br-

\ /          \

C            C

/ \          /

O    -->    Br-

1. The oxygen of the alcohol is protonated by the phosphorus tribromide, making it a good leaving group.

2. A bromide ion (Br-) acts as the nucleophile and attacks the carbon atom that was previously bonded to the leaving group (oxygen).

3. This forms a covalent bond and the leaving group (oxygen) is displaced from the carbon atom. The curved arrows below show the movement of electrons in this process.

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Square planar is the molecular geometry of the ClF4− ion.

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These compounds by their expected solubility in hexane[tex]H_{2}O < C_{2} H_{5} OH < C_{2} H_{6}[/tex]

The polar molecules dissolve into polar molecules and non-polar molecules dissolve into non-polar molecules. There is an electrostatic attraction between positive and negative charged poles of each molecule in polar molecules. This electrostatic attraction called dipole-dipole attraction. In non-polar molecules, the molecules are attracted by dispersion forces because they do not have positive and negative poles.Solubility is the capability of a chemical substance to dissolve. It is the chemical property of a solute to dissolve in solvent. The solute and solvent can be a solid, liquid or gaseous chemical substance. The solubility of a substance is measured in terms of maximum amount of solute dissolved in a solvent at equilibrium.

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Positive catalyst increases the rate of the reaction by providing a shorter path to the reaction to take place while a negative catalyst decreases the rate of the reaction by providing a longer path to the reaction to take place.

Catalysis can be defined as the process of increasing the rate of a chemical reaction by adding a substance known as a catalyst. Catalysts are not consumed in the reaction and remain unchanged after it.

Therefore catalysts speed up a chemical reaction by lowering the amount of energy you need to get one going. Catalysis is the backbone of many industrial processes which use chemical reactions to turn raw materials into useful products.

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Answer:

Aluminum

Explanation:

See the attached worksheet.  The calculated density for the unknown sample is  2.70 g/cm^3, which matches that of aluminum.

PSII and PSI, which are both fed by light-harvesting antenna, are responsible for driving water oxidation and NADP reduction.

'What is the NADP reduction?'

NADP, a reducing agent produced by the light reactions of photosynthesis, is consumed by the Calvin cycle of photosynthesis and is required for many other anabolic activities in both plants and animals.

The Calvin cycle, the creation of lipids and nucleic acids, which both require NADPH as a reducing agent, all require the cofactor nicotinamide adenine dinucleotide phosphate, often known as NADP+ or TPN in older notation. It is used by all sorts of cellular life.

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Lewis diagram for CH3CH2CH2OH.

Lewis diagram for CH3CH2CH2OH

The number of C-H bonds=7

The number of O-H bonds=1

The number of C-C single bonds=2

The number of C-O single bonds=1

The total number of lone pairs=2 ( on O atom)

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lewis structure of CH3CH2CH2OH is

The number of C-H bonds = 7, The number of O-H bonds is 1, The number of C-C single bonds = 2, The number of C-O single bonds = 1, The total number of lone pairs =  2.

1-propanol, also known as propyl alcohol or n-propanol, is a primary alcohol with a molecular formula of C3H8O. It is a colorless liquid that is widely used as a solvent and a cleaning agent. It is also used in the production of acrylates and esters which are used in the manufacturing of various products such as paints, adhesives, and resins. It has a characteristic alcohol odor and is slightly less dense than water. Additionally, it has some medicinal applications, it is used as an antiseptic and disinfectant, it is also a central nervous system depressant, however, it should be handled with caution as it is flammable and can cause eye and skin irritation.

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GeH4 is a non polar molecule.

H2O is a polar molecule.

CO2 is a nonpolar molecule.

The polarity of a molecule depends on the distribution of electrons within it. In a polar molecule, the electrons are distributed unevenly, causing an imbalance of charge and creating a partial positive and partial negative charge. In a nonpolar molecule, the electrons are distributed evenly, creating no imbalance of charge and no partial positive or negative charges.

The molecular geometry of GeH4 is tetrahedral with a symmetric charge distribution. Therefore this molecule is nonpolar.

H2O is a polar molecule because of its bent shape and the presence of polar bonds between the central O atom and the two H atoms. The H atoms are more electronegative than the central O atom, which causes the electrons to be pulled more towards the H atoms. This creates a partial positive charge on the O atom and a partial negative charge on the H atoms, making the molecule polar.

CO2 is a nonpolar molecule because the two C=O bonds are polar, but the molecule has a linear shape and the polarities of the two bonds cancel each other out, resulting in no net dipole moment and therefore the molecule is nonpolar.

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The solubility-product constant for this salt at [tex]25^{0}[/tex]C is 6.4 × [tex]10^{-9}[/tex]

The concentration of the ions in a saturated solution that are in equilibrium with the solid substance is known as the solubility product, or Ks, of an ionic compound.

The property that a material exhibits in the solute for getting dissolved in a solvent in order to form a solution is defined as the solubility product. The ionic chemicals that dissociate to form cations and anions in water vary more in terms of solubility.

Moles of dissolved [tex]PbI_{2}[/tex] = 0.54 g /461.05 g/mol =0.00117

concentration of dissolved [tex]PbI_{2}[/tex] = 0.00117 mol / 1.0 L = 0.00117 M

Concentration [tex]Pb^{2+}[/tex] = 0.00117 M

Concentration [tex]I^{-}[/tex] = 2 x 0.00117 =0.00234 M

[tex]K_{sp}[/tex] =0.00117 [tex](0.00234)^{2}[/tex] = 6.4 x [tex]10^{-9}[/tex]

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dimethyl maleate and dimethyl fumerate are Diastereomers.

Diastereomers are a type of stereoisomers (meaning that they are compounds that differ in their spatial arrangement / position of the atoms), where the compounds are not the mirror image of each other (when comparing the arrangement of their atoms). Enantiomers are compounds that are mirror images of each other (when comparing the arrangement of atoms) and they are non-superimposable. On the other hand, diastereomers too are non-superimposable but, they aren't mirror image of each other either. Conformational isomers (also called rotamers) are stereoisomers formed by rotation about σ bonds. Molecules having conformational isomers often interconvert amongst themselves at room temperature.

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A 1.00 L solution saturated at 25∘C with lead (II) iodide contains 0.54 g of PbI2. So, 4.684*10⁻⁹ is solubility product constant for this salt at 25°C.

Reaction:

PbI₂(s) ⇔ Pb⁺² (aq) + 2I⁻(aq)

The volume of saturated solution is V = 1.00L

The mass of PbI₂ is = 0.54g

So, to calulate solubility product constant.

Firstly, find molar solubility.

molar mass of PbI₂  is = 207.2g/mol + 2.126g/mol

                                    = 461g/mol

The molar solubility for PbI₂;

                                 S = [tex]\frac{\frac{m PbI2}{MpbI2} }{V}[/tex]

                                   S = 1.171*10⁻³mol/L

          [tex]K_{sp}[/tex]  = Pb⁺² *( I⁻)²

                  = S * (2S) ²

                  = 4.684*10⁻⁹

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Cd(NO3)2 + Na2S ——> Cd2S (s) + 2NaNO3

Cs2S is the precipitate.

Na+ and No3- ions are in solution.

Molecular equation: Cd(NO3)2(aq)+Na2S(aq)—>CdS(s)+NaNO3(aq)

Total ionic equation: Cd^2+(aq)+NO3^-(aq)+Na^+(aq)+S^2-(aq)–>CdS(s)+Na^+(aq)+NO3^- (here).The inorganic salt cesium sulfide, often known as cesium sulfide in American English, has the chemical formula Cs2S. It is a potent alkali when dissolved in water. Caesium sulfide releases rotten egg-smelling hydrogen sulfide into the atmosphere.Any of the related members of a family of inorganic compounds with the general formula are referred to as cadmium nitrate; the tetrahydrate form is the most prevalent. The other forms are colorless, crystalline solids that are deliquescent and tend to collect enough moisture from the air to produce an aqueous solution, while the anhydrous form is volatile.

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According to the molecular geometry, the shape of of compound with central sulfur atom with two unshared pairs of electrons and single bonds to two hydrogen atoms is V-shaped and bond angle is 92.1 °.

Molecular geometry can be defined as a three -dimensional arrangement of atoms which constitute the molecule.It includes parameters like bond length,bond angle and torsional angles.

It influences many properties of molecules like reactivity,polarity color,magnetism .The molecular geometry can be determined by various spectroscopic methods and diffraction methods , some of which are infrared,microwave and Raman spectroscopy.

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The order of the elements according to first ionization energy (highest to lowest) is F, O, N, Ne, C, B, Be, Li.

The first ionization energy is the amount of energy required to remove the most loosely bound electron, the valence electron, of an atom or a positive ion. In other words, it is the energy required to convert a neutral atom into a cation by removing an electron. It is typically measured in units of electronvolts (eV) or kilojoules per mole (kJ/mol).

The first ionization energy generally increases across a period, however, elements with a filled s or half-filled p subshell have a higher ionization energy than expected by the general trend.

Fluorine has a half-filled p subshell, which makes it have a higher ionization energy than its nearest neighbors, O and Ne. Similarly, Oxygen has a half-filled p subshell, which makes it have a higher ionization energy than its nearest neighbors, N and Ne.

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Answer:

The reason why the YMCA is a good one I can get it to me if t