Base your answer to the question on the information below. Some dry chemicals can be used to put out forest fires. One of these chemicals is NaHCO3. When NaHCO3(s) is heated, one of the products is
CO2(g), as shown in the balanced equation below.
2NaHCO3(s) + heat - Na2CO3(s) + H2O(g) + CO2(9)
Which is a correct numerical setup for calculating the percent composition by mass of carbon in the product Na2CO3?
1
12
X100
23+12 +16
X100
23+ (2x12) + (3x16)
12
3
X100
(223)+12+(316)
X100
(223)+6+16