Question

Army soldiers in the field use flameless-reaction-heaters, FRHs, to heat their instant meals-ready-to-eat, MRE’s. The reaction proceeds according to the following equation:

Mg + 2H2O LaTeX: \longrightarrow⟶ Mg(OH)2 + H2 + 353kJ

If a single FRH has 6.0g of magnesium, Mg, how many grams of water must be added to react with it completely?

Group of answer choices

36 g

72 g

9.0 g

18 g

Answer 1

Answer:

18h

Explanation:

2H2O LaTeX: \longrightarrow⟶ Mg(OH)2 + H2 + 353kJ

If a single FRH has 6.0g of magnesium, Mg, how many grams of water must be added to react with it completely?

Group of answer is 18 g