Answer:
0.0595 moles of silicon (Si)
Explanation:
From the chemical formula of the compound we devise the following reasoning:
if for 3 moles of magnesium (Mg) we have 2 moles of silicon (Si)
then for 0.0893 moles of magnesium (Mg) we have X moles of silicon (Si)
X = (0.0893 × 2) / 3 = 0.0595 moles of silicon (Si)
