Question

balance the chemical equation below, then use the objects in the answer key to correctly display the balanced equation.
? na + ? o₂ → ? na₂o

Explanation:

Step1: Balance oxygen atoms

The left - hand side has \(O_2\) (2 oxygen atoms) and the right - hand side has \(Na_2O\) (1 oxygen atom). To balance oxygen, we put a coefficient of 2 in front of \(Na_2O\). The equation becomes \(Na+O_2
ightarrow2Na_2O\).

Step2: Balance sodium atoms

Now, the right - hand side has \(2\times2 = 4\) sodium atoms from \(2Na_2O\). So we put a coefficient of 4 in front of \(Na\) on the left - hand side. The balanced equation is \(4Na + O_2
ightarrow2Na_2O\).

Answer:

\(4Na+O_2
ightarrow2Na_2O\)