Question

 In an experiment, 32 g of magnesium reacts with 81 g of hydrogen chloride to produce a  gas and 107 g of magnesium chloride. What conclusion can you draw?

a. the Law of Conservation of Mass does not apply to this experiment  

b. 6 g of carbon dioxide were produced 

c. 49 g of chlorine were produced  

d. 6 g of hydrogen were produced

Answer 1

Mg + 2HCl -> MgCl₂ + H₂

m(Mg) + m(HCl) = m(MgCl₂) + m(H₂)

32g + 81g = 107g + 6g

Answer d - 6 g of hydrogen were produced