Calcium reacts with oxygen. Calcium oxide is made.
The balanced symbol equation is shown.
2Ca+O2→2CaO 2\text{Ca} + \text{O}_2 \rightarrow 2\text{CaO} 2Ca+O2→2CaOCalculate how much calcium is needed to make 14.0 g of calcium oxide. (Relative atomic masses: Ca=40\text{Ca} = 40Ca=40, O=16\text{O} = 16O=16)
5.0 g5.0\text{ g}5.0 g
10.0 g10.0\text{ g}10.0 g
14.0 g14.0\text{ g}14.0 g
19.6 g19.6\text{ g}19.6 g