Question

HELP A #QUEEN OUT !!!!!!

Select the correct answer.

Which reaction is a decomposition reaction?

A.
2KClO3 → 2KCl + 3O2
B.
4Na + O2 → 2Na2O
C.
ZnS + 3O2 → 2ZnO + 2SO2
D.
2NaBr + CaF2 → 2NaF + CaBr2

Answer 1

A but remove the coefficients from kcl and 3

Answer 2

Answer: 2KClO3 → 2KCl + 3O2

Explanation: it's the only one that was broken down into more parts than the start, the rest were simply reseperated

this one : 1 → 2

b : 1 + 1 = 2

c : xy+ wz → wy + xz

d : qwer +tyuio → qwui + tyero

ALSO I got it right