Match the compounds with their correct formulas.

Compounds	Formulas
1. Hydrochloric acid	A. $\mathrm{NaCl}$
2. Potassium hydroxide	B. $\mathrm{NaOH}$
3. Sulphuric acid	C. $\mathrm{KCl}$
4. Zinc hydroxide	D. $\mathrm{Ca}(\mathrm{OH}{)}_2$
5. Sodium chloride	E. $\mathrm{CaS}$
6. Nitric acid	F. ${\mathrm{CuSO}}_4$
7. Calcium hydroxide	G. ${\mathrm{CaCO}}_3$
8. Carbonic acid	H. ${\mathrm{NH}}_4\mathrm{Cl}$
9. Sodium hydroxide	I.$\mathrm{HCl}$
10. Copper sulphate	J.$\mathrm{ZnO}$
11. Potassium chloride	K.${\mathrm{HNO}}_3$
12. Calcium carbonate	L.${\mathrm{H}}_2{\mathrm{CO}}_3$
13. Magnesium sulphide	M.$\mathrm{MgS}$
14. Zinc sulphate	N.$\mathrm{MgO}$
15. Aluminium hydroxide	O.$\mathrm{KOH}$
16. Sodium carbonate	P.${\mathrm{ZnSO}}_4$
17.Calcium sulphide	Q.${\mathrm{Na}}_2{\mathrm{CO}}_3$
18.Magnesium oxide	R.${\mathrm{H}}_2{\mathrm{SO}}_4$
19.Zinc oxide	S.$\mathrm{Al}(\mathrm{OH}{)}_3$
20.Ammonium chloride	T.$\mathrm{Zn}(\mathrm{OH}{)}_2$