1. Balance the following reaction with the smallest possible integer coefficients. What is the coefficient of carbon monoxide? For blank coefficients, assign a value of 1. ? F e 2 O 3 ( s ) + ? C O ( g ) ? F e ( s ) + ? C O 2 ( g )

2. Balance the following chemical reaction. phosphoricacid+hydrochloricacidphophoruspentachloride+water

Enter the sum of the balanced coefficients as your answer. Assign "blank" coefficients a value of 1.