Chemical calculations

Question 1

If the energy taken in when breaking bonds is more than the energy given out by making bonds is the reaction exothermic or endothermic

Answer 1

Endothermic

Question 2

If the energy taken in when breaking bonds is less than the energy given out by making bonds, is the reaction exothermic or endothermic

Answer 2

Exothermic

Question 3

If I have 32g of oxygen and 12g of carbon, what compound will I make

Answer 3

32/16=2
12/12=1

2:1 CO2