Question

You combine 13 g of magnesium with 5 g of nitrogen to form a compound.

Answer 1

Answer:

$\large \boxed{28 \, \% }$

Explanation:

magnesium  + nitrogen ⟶ Product

      13 g                5 g

Mass of product = 13 g + 5 g = 18 g

The product contains 5 g of nitrogen .

$\text{Percent N} = \dfrac{\text{5 g}}{\text{18 g}} \times \, 100\% = \mathbf{28 \, \%}\\\text{The percent by mass of nitrogen is \large \boxed{\mathbf{28 \, \% }} }$