NaHCO3 is called _____________.
sodium carbonate
sodium bicarbonate
sodium tricarbonate
none
Calcium hydroxide contains one atom of calcium, two atoms of hydrogen and ________ atoms of oxygen.
1
3
2
4
____________ is the chemical formula of ammonium chloride.
NH2Cl
NH4Cl
NH3Cl
N2HCl
Magnesium reacts with oxygen and forms____________.
Magnesium dioxide
Magnesium trioxide
Magnesium oxide
None
__________ is the chemical formula of Calcium chloride.
CaCl
CaCl2
Ca2Cl
Cations are ___________.
electropositive
electronegative
neutral
When Barium chloride reacts with sulphuric acid gives BaSO4 and __________.
HCl
Cl2
H2
SO2
Hg is the symbol of ___________.
mercury
gold
silver
tin
Zinc reacts with HCl to give zinc chloride and ____________.
Hydrogen
Chlorine
Zinc
The formula of Hydrogen peroxide is __________.
H2O4
H2O3
H2O2
H3O4
