provide balanced equations that represent the thermal decomposition of sodium nitrate and calcium nitrate; compare and comment on the products of each reaction.

Answer 1

I believe NaNO3 decomposes as
NaNO3 + heat ==> NaNO2 + O2 and Ca(NO3)2 as
Ca(NO3)2 + heat ==> CaO + NO2 + O2. The last one is not balanced but you can do that. Check me out on this.

Answer 2

2NaNO3 + heat = 2NaNO2 + O2

Ca(NO3)2 + heat= CaO + NO2 + O2

Answer 3

2NaNO3 + heat = 2NaNO2 + O2

Ca(NO3)2 + heat= CaO + 2NO2 + O2