2nd+Period+Wiki+continued

Write correct formulas for the products in these combustion reactions. You're in luck! In case you hadn't noticed yet, combustion ends the same way every time!! The products are carbon dioxide (CO2) and water (H2O). Wish they were all that way, don't you? 5) C6H6 + O2 ---> 6) C12H22O11 + O2 --->

7) H2CO3 8) H2SO4
 * Calculate the percent composition of hydrogen in the compound.**


 * Theoretical Yield**


 * 1) Calcium carbonate is decomposed by heating, as shown in the following equation.

CaCO3(s)  ® CaO(s) + CO2(g) a. What is the theoretical yield of CaO if 24.8 g CaCO3 is heated?

b. What is the percent yield if 13.1 g CaO is produced?

2. When 84.8 g iron(III) oxide reacts with an excess of carbon monoxide, 54.3 g of iron is produced. Fe2O3(s) + 3CO(g)  ® 2Fe(s) + 3CO2(g)

What is the percent yield of this reaction?