Question

Which of the following statements statements expresses the following chemical equation with words?

2 K(s) + Cl2(g) ---> 2 KCl(s)

Select one:
a. Four atoms of krypton react with two molecules of Cl2
b. Two atoms of potassium react with one molecule of chlorine to produce two molecules of potassium chloride.
c. One atom of chromium reacts with 1 molecule of calcium to produce 1 molecule of chromium calcide.
d. Two atoms of potassium react with potassium chloride to produce chlorine gas.​

Answer 1

Answer:What are the two half reactions that show how many electrons are gained or lost by each species in the reaction:

Ni2+(aq) + Mg(s) → Ni(s) + Mg2+(aq)?

atoms cannot be created or destroyed in a chemical reaction