Use your balanced reaction to make a "for every" statement for magnesium and hydrogen gas in this reaction.
For every 1 mole of magnesium, the reaction makes 1 mole of hydrogen gas.
For every 1 mole of magnesium, the reaction makes 2 moles of hydrogen gas.
For every 24.305 mole of magnesium, the reaction makes 2.016 mole of hydrogen gas.
For every 1 mole of magnesium, the reaction uses up 1 mole of hydrogen gas.
