Question

For every O ion, two Na ions are needed to balance charges. Which ratio represents the relationship between Na and O? 1 Na:1 O 1 Na:2 O 2 Na:1 O 2 Na:2 O

Answer 1

For every O ion, two Na ions are needed to balance charges. Which ratio represents the relationship between Na and O?

2 Na:1 O

Answer 2

Answer:

Ratio represents the relationship between Na and O is 2:1.

Explanation:

Given that for every oxygen ion two sodium ions are needed to balance charge.

1 oxygen ion requires 2 sodium atoms

$O^{2-}+2Na^+\rightarrow Na_2O$

The ratio of oxygen ion to sodium ions is:$\frac{1}{2}$

So, on reversing the ratio we will get the ratio of sodium ions to oxygen ions:

$\frac{Na^+}{O^{2-}}=\frac{2}{1}$