Chemistry
The formula of sodium carbonate is Na2CO3 and that of calcium hydrogen carbonate is
- CaHCO3
- Ca(HCO3)2
- Ca2HCO3
- Ca(HCO3)3
Related Questions
The formula of iron (III) sulphate is
- Fe3SO4
- Fe(SO4)3
- Fe2(SO4)3
- FeSO4
In water, the hydrogen-to-oxygen mass ratio is
- 1 : 8
- 1 : 16
- 1 : 32
- 1 : 64
The correct atomic symbols for carbon, calcium, copper and cadmium respectively are:
- Ca, C, Cu, Cd
- Ca, C, CO, Cd
- C, Ca, Cu, Cd
- Ca, Cl, Co, Cd
Hydrargyrum is the Latin name of:
- Gold
- Silver
- Mercury
- Platinum