Molecular Formula

Number of hydrogen atoms in a sucrose molecule is _____.

Mass $\%$ of carbon in a glucose molecule is:

The correct chemical formula of aluminium oxide is

Write the molecular formula for
Magnesium nitride

$$\begin{gathered} \mathrm{A}. {\mathrm{Mg}}_3{\mathrm{N}}_2 \\ \mathrm{B}. \mathrm{Mg}{\left({\mathrm{NO}}_3\right)}_2 \\ \mathrm{C}. {\mathrm{MgCO}}_3 \end{gathered}$$

(Enter your correct answer as $\mathrm{A}, \mathrm{B} \mathrm{or} \mathrm{C}$)

Write the molecular formula for Barium carbonate.

$\mathrm{A}: {\mathrm{Ba}}_2{\mathrm{CO}}_3 \mathrm{B}: {\mathrm{BaCO}}_3 \mathrm{C}: {\mathrm{BeCO}}_3$ (Enter your correct answer as $\mathrm{A}, \mathrm{B} \mathrm{or} \mathrm{C}$)

Write the molecular formula for
Nitric oxide

Calculate the percentage of Oxygen in water$\left({\mathrm{H}}_2\mathrm{O}\right)$.

${\mathrm{ZnCl}}_{\mathrm{X}}$ is the molecular formula of zinc chloride. Here X is _____.

The molecular mass or unit formula mass of a substance expressed in grams, is called _____.