Find the correct formula of potassium sulphate.

A. ${\mathrm{KSO}}_4$

B. ${\mathrm{K}}_2{\mathrm{SO}}_4$

C. ${\mathrm{K}}_2{\left({\mathrm{SO}}_4\right)}_3$

"Enter your correct answer as A, B or C."

The formula of Ammonium sulphate is $({\mathrm{NH}}_4{)}_2{\mathrm{SO}}_x$. Find the X.

Find the correct formula:

Potassium Chloride

Find the correct formula of sodium nitrate.

A. ${\mathrm{Na}}_2{\mathrm{NO}}_3$

B. $\mathrm{NaNO}$

C. ${\mathrm{NaNO}}_3$

"Enter your correct answer as A, B or C."

Find the correct formula of Potassium Nitrate

A. $\mathrm{KNO}$

B. ${\mathrm{KNO}}_2$

C. ${\mathrm{KNO}}_3$

"Enter your correct answer as A, B or C."

Find the correct formula of Ammonium Chloride-

A. ${\mathrm{NH}}_4{\mathrm{Cl}}_3$

B. ${\mathrm{NH}}_4\mathrm{Cl}$

C. ${\mathrm{NH}}_3\mathrm{Cl}$

"Enter your correct answer as A, B or C."

Write the correct formula:

Sodium Chloride