Chemistry High School

What is the net ionic equation of
Mg(s) + Zn2+ + 2NO3 → Mg2+ + 2NO3 + Zn(s)?

A. Mg(s) → Zn(s)
B. Mg(s) + Zn2+ → Mg2+ + Zn(s)
C. Mg(NO3)2 + Zn(s) → Zn2+ + 2NO3 + Mg(s)
D. Mg(s) + Zn(NO3)2 (aq) → Mg(NO3)2(aq) + Zn(s)

Answers

Answer 1

Answer:

Mg(s)+Zn2+>>>>>Mg2++Zn(s) B

Explanation:

Answer 2

The net ionice quation of a reaction represents the net  change in the reaction.Here the reaction proceeds to the formation of Mg²⁺  ion and metallic zinc. Thus option B is correct.

What is ionic equation?

A balanced equation of chemical reaction represents the perfect stoichiometric ratio of each reactants and products where each elements have to be equal in number in both side.

An ionic equation represents the ions involved in the reaction and the charges and coefficients of ions have to balanced each side.

In the electrolysis of magnesium and zinc electrodes, metallic magnesium oxidizes to Mg²⁺ions and Zn²⁺ ions reduces to metallic zinc. The NO³⁻- ions remains as same as in its aqueous state in the electrolyte.

Hence the net ionic equation is as written in  option B.

To find more on ionic equations, refer here:

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