Answer: KClO3 ---> KCl + O2
Explanation: it's the only one that was broken down into more parts than the start, the rest were simply reseperated
A (correct) : 1 → 2
b : 1 + 1 = 2
c : xy+ wz → wy + xz
d : qwer +tyuio → qwui + tyero
ALSO I got it right