# chem

posted by
**Fiona** on
.

For this problem, will someone please check my answer?

How many grams of oxygen are produced in the decomposition of 5.00g of potassium chlorate?

KClO3(s)--->KCl(s)+O2(g)

[the equation may not be balanced]

My answer is 1.96 g of O2.

The balanced equation is

2KClO3 ==> 2KCl + 3O2

I, too, obtained 1.96g O2. You must have balanced the equation before solving, else our answers would not have agreed.

Yes, I did. Thank you!