Question

$24.088\times {10}^{23}$ atoms of oxygen will combine with _______ hydrogen atoms to form $H_{2}O$.

• A. 6.022 × 10²³
• B. 24.088 × 10²³
• C. 48.176 × 10²³
• D. 7.99 × 10²³

Answer 1

The correct option is C

48.176 × 10²³

In water 1 atom of oxygen combines with 2 atoms of hydrogen.

So $24.088\times {10}^{23}$ atoms of oxygen will combine with $48.176\times {10}^{23}$atoms of hydrogen.