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2 years ago

The appropriate geometric "fixing" of two atoms which is necessary to start chemical rearrangement is called the:

Chemistry

2 answers:

Ivanshal [37]2 years ago

8 0

The answer is: activation complex.

Activated complex is collection of intermediate structures in a chemical reaction that forms while bonds are breaking and new bonds are forming.

The successful collisions must have enough energy (activation energy).

Chemical bonds are broken and new bonds are formed.

Particles are in constant, random motion and possess kinetic energy, molecules faster and have more collisions.

ahrayia [7]2 years ago

4 0

Hello there.

Question: <span>The appropriate geometric "fixing" of two atoms which is necessary to start chemical rearrangement is called the:

Answer: It is called activation complex.
</span><span>
Hope This Helps You!
Good Luck Studying ^-^</span>

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Is this a model of an element, a compound, or a mixture? Explain your reasoning.

grandymaker [24]

Answer:

A mixture

Explanation:

Yes

6 0

2 years ago

A certain process has ΔH° > 0, ΔS° < 0, and ΔG° > 0. The values of ΔH° and ΔS° do not depend on the temperature. Which

tino4ka555 [31]

Answer: It is non-spontaneous at all T.

Explanation:

According to Gibb's equation:

$\Delta G=\Delta H-T\Delta S$

$\Delta G$ = Gibbs free energy = +ve

$\Delta H$ = enthalpy change = +ve

$\Delta S$ = entropy change = -ve

T = temperature in Kelvin

$\Delta G$ = +ve, reaction is non spontaneous

$\Delta G$ = -ve, reaction is spontaneous

$\Delta G$ = 0, reaction is in equilibrium

Putting in the values:

$\Delta G=(+ve)-T(-ve)$

$\Delta G=(+ve)(+ve)=+ve$

Reaction is non spontaneous at all temperatures.

4 0

2 years ago

Atoms of different chemical elements can be differentiated based on the number of.

Alona [7]

The atoms of different chemical elements can be differentiated based on the number of protons.

Each chemical element is differentiated by his number of protons. This number of protons is also knowing as atomic number and it is represented by the letter (Z).

The atomic number represented the number of protons in the nucleus of an element. For example:

The element that has only 1 proton in his nucleus is Hydrogen atom.
The element that has 2 protons in his nucleus is Helium atom.

The atom is the smallest part of the composition of matter, it is indivisible and is composed of a nucleus that has protons and neutrons, and around the nucleus there are the electrons.

Learn more about the atom at: brainly.com/question/17545314

#SPJ4

3 0

1 year ago

Mr. Avogadro has 20 grams of radioactive Pa-234. How many atoms of Pa-234 does Mr. Avogadro have? PLEASE HELP WILL MARK BRAINLIE

jolli1 [7]

Answer:

The number of atoms in 20 grams of Pa-234 is 5.14 ×10²² atoms

Explanation:

Given that the molar mass of Pa-234 (protactinium) is 234.04331, we have

The number of moles of protactinium in 20 grams of Pa-234, we have

Number of moles = Mass/(Molar mass) = 20/234.04331 = 0.0855 moles

One mole of Pa-234 contains 6.02×10²³ atoms, therefore, we have;

0.0855 moles of Pa-234 contains 0.0855× 6.02×10²³ = 5.14 ×10²² atoms

Therefore, the number of atoms in 20 grams of Pa-234 = 5.14 ×10²² atoms.

6 0

3 years ago

Read 2 more answers

Explain how the concentration of hydronium ions and hydroxide ions are related to pH.

Dominik [7]

Hello!

The concentration of hydronium ions is related to pH by the following simple equation:

$pH=-log[H_3O^{+}]$

From this equation, you can see that as the hydronium concentration is higher, the pH will be lower.

The concentration of the OH⁻ ions is related to the pH by the following set of equations

$pOH=-log[OH^{-}] \\ pH=14-pOH$

You can see that as the concentration of OH⁻ is higher, the pOH is lower and thus the pH is higher.

When the pH of the solution is less than 7, the solution is acidic.

When the pH of the solution is higher than 7, the solution is basic.

Have a nice day!

8 0

2 years ago