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
Mg + 2HCl -> MgCl2 + H2
m(Mg) + m(HCl) = m(MgCl2) + m(H2)
32g + 81g = 107g + 6g
Answer d - 6 g of hydrogen were produced
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