which of the following with the kinetic theory address? a
A. Vibrations in molecules
B. Oxidation states of Adams
C. Shapes of molecules
D. Energy levels and electrons

The titration would require the same amount of NaOH.

The number of moles of solute in a solution remains the same irrespective of the amount of water added to dilute the solution.

This is in accordance with the dilution law which says that the number of moles of a solution before dilution is the same as after dilution.

Thus, the amount of NaOH needed to neutralize the vinegar will remain the same for a complete reaction since the number of moles of solute in the vinegar has not changed.

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The energy of the photon from the calculation performed is 3.5 * 10^-16 J.

A photon is a packet of light. It was derived from the theory of Albert Einstein. The energy of a photon is obtained from; E = hc/λ

Now we have that;

E = 6.6 * 10^-34 * 3 * 10^8/562 * 10^-9

E = 3.5 * 10^-16 J

Missing parts:

Calculate the energy, in joules, of a photon of green light having a wavelength of 562nm?

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Answer:

The molecules of the substance move further apart which pulls on the intermolecular bonds between them

Explanation:

because it said it was right

Based on the observations from, the substance that water is more attracted to are polar substances.

Water is a compound made up of 2 atoms of hydrogen and 1 atom of oxygen.

Water molecule is polar due to the unequal sharing of electrons between the atoms and the unsymmetrical shape of the molecule.

Since water molecules are polar, they are more attracted to molecules that are also polar.

Thus, based on the observations from, the substance that water is more attracted to are polar substances.

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[tex]O^{2-}[/tex] is the Lewis base in the following reaction:

[tex]SO_3(g) + O^{2-}(aq)[/tex]   →  [tex]SO_4^{2-}(aq)[/tex]

Lewis base is a species that donates an electron pair.

In the above-given chemical equation, the [tex]O^{2-}[/tex]is the lewis base which is donating an electron pair to the central atom of [tex]SO_3[/tex] to form [tex]SO_4^{-2}[/tex].

Hence, [tex]O^{2-}[/tex] is the Lewis base in the following reaction:

[tex]SO_3(g) + O^{2-}(aq)[/tex]   →  [tex]SO_4^{2-}(aq)[/tex]

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Answer:
857.2947

Explanation:

You start with what you’re given 82g of H20 and multiply by 1 mole and the actual grams of h20 which is 18.0 then you do the mole. 1 mol of O2 and 2 mol of H2O times 6.02 x 10^23

Answer: Environmental chemistry

Explanation:

Answer:

See Explanation

Explanation:

Because you have to get through the d-block electron configurations for the rest of the p-block elements which is a hassle to do. You need to know how to account for electron stability, from which subshell to remove electrons, etc. because it is all weird for d-block.

The solution is the mixture of the solute into the solvent particles. In 60 mL solution, 59.8 mL of solvent is added.

Solute and solvent are the components of a solution. They react and mix together to produce a homogenous mixture. The solute is a substance that is added to the solvent.

Solvents are substances that dissolve the added solute in them to make a homogenous solution.

Given,

Volume of Solute = 0.20 mL

Volume of Solution = 60 mL

The volume of solvent is calculated as:

Volume of solvent = Volume of solution - Volume of solute

= 60- 0.20

= 59.8 mL.

Therefore, 59.8 mL of solvent is present in 60 mL of solution.

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Toxicology is the branch which studies about toxic chemicals and their effects.

Toxicology is the branch in science in which the researches and study are done for finding the effect of the toxic  or poisonous elements on plants , animals , human and earth at large.

High levels of lead exposure is dangerous to humans as it can cause permanent disabilities , it is carcinogenic and hence can lead to death.

This is studied in toxicology.

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Answer:

D.) Speciation

Explanation:

A.) is incorrect because favorable traits becoming more widespread within a population usually means that the population is becoming better suited for its environment. Therefore, unless there are external factors, starvation is not a direct result of positive adaptations.

B.) is incorrect because the population is gaining adaptations that make their survival within an environment more likely, not less likely. Again, extinction is the opposite of what occurs when this happens.

C.) is incorrect because migration typically occurs when a population is experiencing hardships within their environment. This is what causes them to move somewhere else in order to increase their survival/reproductive success. As stated previously, favorable adaptations would make the population better suited for their current environment. These changes would discourage migration.

D.) is correct because speciation occurs when a population changes so much over generations to the point in which they become another species entirely. If a population undergoes numerous positive adaptations, they will become more and more fit for their environment. This newfound fitness and these changes may be so drastic that the population becomes too different to classify them the same way they once were.

Answer:

D. speciation

Explanation:

took the test

Answer:

the molecules move more quickly and their average kinetic energy decreases :D

Explanation:

Answer:

[tex]\huge\bold\color{pink}{- Magdonal -}[/tex]

[tex]\huge\red{\overline{\qquad\qquad\qquad\qquad}}[/tex]

[tex]\pink{\rule{1pt}{999999pt}}[/tex]

Answer:

.025 moles

Explanation:

Be Cl2   is beryllium chloride

Be = 9.0121 gm/mole

Cl = 35.45 gm mole

   Be Cl2 = 79.91 gm/mole

2 gm / 79.91 gm/mole = .025 moles

3.00097 x [tex]10^{23}[/tex] atoms are contained in 100.0 g of mercury.

The mole is defined as the amount of substance that contains as many elementary entities as there are atoms in exactly 12 g of carbon-12.”

Number of moles of mercury = [tex]\frac{mass}{molar \;mass}[/tex]

Number of moles of mercury = [tex]\frac{100.0 g}{200.59 u}[/tex]

=  0.4985 moles

Number of moles of mercury = Number of atoms = moles of Hg x [tex]6.02 X 10^{23}[/tex]

= 0.4985 x [tex]6.02 X 10^{23}[/tex]

= 3.00097 x [tex]10^{23}[/tex] atoms.

Hence, 3.00097 x [tex]10^{23}[/tex] atoms are contained in 100.0 g of mercury.

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The unknown solid is removed by rinsing with water while the PDB is removed by rinsing with alcohol.

Solvents are substances which dissolve other substances to form solutions or mixtures.

Water is used as a solvent for inorganic substances while organic solvents such as alcohol or kerosene are used as solvents for organic substances such as PDB.

Alcohol is added to the test tube containing PDB, which then dissolves. The tube is rinsed with more alcohol until all the PDB dissolves.

Therefore, the unknown solid is removed by rinsing with water while the PDB is removed by rinsing with alcohol.

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Lithium is used to build computer batteries, whereas iron is used in industry to construct buildings and bridges.

In engineering, metals are characterized to have electrical conductivity and other properties (e.g., ductility, reflectivity, etc).

For example, Lithium can be defined as soft metal (alkali metal) that is suitable to store electrical energy.

In conclusion, Lithium is used to build computer batteries, whereas iron is used in industry to construct buildings and bridges.

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We can see from the details below that, the value of the solution's molality is 1.14 mol/Kg.

The term solubility has to do with the quantity of solute that is able to dissolve in a given quantity of solvent. We have the solubility of the sodium hydrogen carbonate in water at 20 degrees as 9.6 g/100 g h2o.

Number of moles of sodium hydrogen carbonate = 9.6 g/84 g/mol = 0.114 moles

Number of moles water = 100 g /18 g/mol = 5.55 moles

Mole fraction of sodium hydrogen carbonate is obtainable by the use of the relation;

0.114 moles/0.114 moles + 5.55 moles

= 0.02

Molality of the solution = 0.114 moles/0.1 Kg = 1.14 mol/Kg

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Answer:

Highest wavelength : radio waves

So lowest energy: radio waves

Hence order is:

radio waves < microwaves < IR waves < visible light < ultraviolet radiation < X-rays < gamma rays

Answer:

6

Explanation:

The atomic number for phosphorous is 15, meaning that it has 15 electrons (and protons). The first and second shells would be filled up with 2 and 8 electrons respectively, leaving 5 which goes on the third shell, which is also the valence shell, meaning phosphorous has 5 valence electrons.

Since the atomic number of sulfur is 16, the first and second shells are also filled up with 2 and 8 electrons respectively, leaving 6 to be on the third shell, the valence shell. Hence, sulfur has 6 valence electrons.

Answer: 0.02 M

Explanation:

[tex]M_{A}V_{A}=M_{B}V_{B}\\(23)(0.0150)=(18)M_{B}\\M_{B}=\frac{(23(0.0150)}{18} \approx \boxed{0.02 \text{ M}}[/tex]

The formula for an isotope of oxygen with nine neutrons, including the mass number and the atomic number is 17/8 O.

Isotope is any of two or more forms of an element where the atoms have the same number of protons, but a different number of neutrons within their nuclei.

This means that atoms of isotopes will have the same atomic number but a different mass number.

According to this question, an isotope of oxygen has 9 neutrons. If oxygen has an atomic number of 8, the formula of this particular isotope is as follows: 17/8 O.

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The equation for this reaction is

[tex]\text{Mg}+\text{O} \longrightarrow \text{MgO}[/tex]

This means that for every mole of magnesium consumed, 1 mole of magnesium oxide is produced.

So, the answer is 0.094 moles.

A phenotypic characteristic and/or trait of the cats that exhibit variation is the fur color.

Phenotypic variation is any type of distinguishable value for a trait that depends on genetic and/or environmental factors.

Cats exhibit different fur colors depending on specific gene variants (alleles) that are inherited from their parents.

In conclusion, a phenotypic characteristic or trait of the cats that show a variation is the fur color.

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Answer:

65 ml

Explanation:

The aluminum will not float , so it will displace a volume of fluid equal to its volume.

 13.5 gm / 2.7 gm/ml = 5 ml

the new graduated cylinder measurement will be 60 + 5 = 65 ml

The chemical equation for the reaction between carbon oxide and nitrogen oxide is shown below:

[tex]CO + NO \rightarrow CO_2 + N_2[/tex]

A chemical equation is an equation which uses the symbols of elements and compounds to represent the reactions which occur between elements or compounds to form products.

The chemical symbol for carbon is C, nitrogen is N, and oxygen is O.

The equation representing the reaction between carbon oxide and nitrogen oxide is shown below:

[tex]CO + NO \rightarrow CO_2 + N_2[/tex]

Therefore, the chemical equation for the reaction between carbon oxide and nitrogen oxide represents the reaction to form carbon dioxide and nitrogen gas.

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Answer:

Hydrogen Gas is the free element

The purpose of cracking in the production of ethene is to convert large molecules into small molecules.

Ethene can be produced from the thermal cracking of ethane and propene.

In thermal cracking, high temperature of about 750-850°C and pressure of up to about 70 atm is used to break carbon-carbon bonds. Free radicals are formed in the process.

More about petroleum refining processes:

Petroleum refinery can be classified into two broad categories, namely the main refining processes and conversion processes. Main refining processes includes distillation, absorption and adsorption, while conversion processes involves thermal cracking, catalytic cracking and hydrocracking.

As the name implies, cracking is generally the breaking up of larger molecules into smaller, more useful molecules, such as those with 5 to 12 carbons.

To better comprehend cracking processes, we can use the analogy of dropping a ceramic mug.

When this ceramic mug is dropped, it breaks into smaller ceramic pieces. This represents smaller molecules being formed from a larger molecule. The force used to break them into smaller molecules would differ in the various types of cracking processes. For example, thermal cracking mainly uses heat while catalytic cracking mainly uses a zeolite catalyst.

Note that for these cracking processes to occur, there are other conditions involved.

Additional:

To learn more about cracking, do check out the following!