chlorine has 7 outer energy level electrons and argon has 8. what is the difference in the reactivity of these two elements?

Answers

Answer 1

Answer: chlorine is more reactive than argon, because argon is not reactive at all. Chlorine only has to gain 1 valence electron

Answer 2

Answer: Chlorine is highly reactive as it seeks to gain an extra electron to balance its outer shell (max 8) and argon is stable because it has a stable outer shell

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The standard enthalpy change for the reaction of SO3(g) with H2O(l) to yield H2SO4(aq) is ΔH∘ = -227.8 kJ . Use the following information S(s)+O2(g)→SO2(g), ΔH∘ = -296.8kJ SO2(g)+12O2(g)→SO3(g) , ΔH∘ = -98.9kJ to calculate ΔH∘f for H2SO4(aq) (in kilojoules per mole). [For H2O(l),ΔH∘f = -285.8kJ/mol].
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Is a strong acid
a. NaC₂H₃O₂
b. HC₂H₃O₂
c. KCl
d. NH₃
e. HCl

Answers

E. HCI

Source:
The Internet

Which two factors must be equal when a chemical reaction reaches equilibrium?(1) the concentration of the reactants and the concentration of the products
(2) the number of reactant particles and the number of product particles
(3) the rate of the forward reaction and the rate of the reverse reaction
(4) the mass of the reactants and the mass of the products

Answers

The correct answer is the statement in option 3. Chemical equilibrium is achieved when both the reactants and the products are in concentrations that has no further tendency to change even as time goes to infinity. This happens when the forward reaction rate is the same as the reverse reaction rate.

2.The image below shows two nitrogen atoms. For these two atoms to form a stable molecule, N2, how many electrons would have to be part of covalent bonds?

Answers

D. 6 electrons

A single nitrogen atom has five electrons in its outer energy level to start, and will be most stable with an octet, or 8 electrons in its outer level.

Since N2 is a covalent bond, the lewis dot structure of N2 would have a triple bond. Each bond contains 2 electrons, so if it has a triple bond it contains 6 electrons.
Calculate the number of valence electrons of N2
N= 2x 5 = 10
N2 has a total of 10 valence electrons, to become stable each N atom needs 8 electrons.
So, therefore, 6 electrons would have to be a part of covalent bonds because they share 6 electrons in a triple bond.

Most tornadoes carry wind speeds that range fromA. 1 to 105 km per hour.
B. 267 to 322 km per hour.
C. 105 to 177 km per hour.
D. 178 to 266 km per hour.

Answers

In the categorization of tornadoes, most tornadoes (87%) are no stronger than EF1 unless 'most' is considered 55% in which case the answer is EF0.
EF0 - 65 to 85 mph {104.61 to 136.79 km/h}EF1 - 86 to 110 mph {138.40 km/h to 177 km/h}
Hence the answer would have to be C

The molecule that functions as the reducing agent (electron donor) in a redox or oxidation-reduction reaction _____. a)loses electrons and loses potential energy
b)gains electrons and gains potential
c)energy gains electrons and loses potential energy
d)loses electrons and gains potential energy

Answers

Answer : The correct option is a) Loses electrons and loses potential energy.

Explanation :

Reducing agent : In a redox reaction, it is oxidized by the loss of electrons and by the loses of potential energy. It is also called as electron donor.

Reducing agent reduces others by loss of electron and its oxidation state increases.

For example : Sodium is a reducing agent and itself oxidized as follows,

$Na\rightarrow Na^++e^-$

Therefore, the molecule that function as a reducing agent in a redox reaction is loses electrons and loses potential energy.

Final answer:

In a redox reaction, the reducing agent loses both electrons and potential energy. This process results in oxidation of the reducing agent as the oxidation state of the reducing agent increases.

Explanation:

Oxidation-Reduction Reaction

In a redox or oxidation-reduction reaction, the molecule acting as the reducing agent (or electron donor) loses electrons and loses potential energy. Hence, the correct option is a). The reducing agent donates electrons to another substance or molecule and, in this process, is itself oxidized. The oxidation state of the reducing agent increases. The reduction process involves a gain of electrons, but this gain happens to the substance that receives the electrons, not the one who donates them (the reducing agent).

Learn more about Oxidation-Reduction Reaction here:

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How many grams of nickel 58.69 (No,58.69 g/mol) are in 1.57 moles of nickel

Answers

Answer:

92.1

Explanation:

1.57 * 58.69

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