Question

Sodium forms an oxide containing one oxygen atom for every two atoms of sodium. What is the coefficient of sodium in the balanced equation for the reaction of sodium with oxygen to form this oxide?

• A. $0$
• B. $1$
• C. $2$
• D. $3$
• E. $4$

Answer 1

The correct option is C $2$

One oxygen atom for every $2$ atoms of sodium means that the oxide of sodium is $N{a}_{2}O$.

So, balanced equation for oxide formation of sodium will be:-

$4Na+O_2⟶2N{a}_{2}O$