Write the molecular formulae of:
1. Copper(II) oxide
2. Iron (III) chloride
3. Sodium hydroxide
4. Iron (II) sulphide
5. Lead (II) oxide
6. Hydrogen nitrate (nitric acid)
7. Hydrogen sulphate (sulphuric acid)
8. Calcium hydroxide
9. Magnesium carbonate
10. Ammonium carbonate
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Answer:
Cuo
Fecl2
Naoh
Fes
Pbo
Hno3
H2so4
Ca(oh) 2
Mgco3
Nh2(co3)4
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