Classify the following substances as acidic, basic and neutral.
HCl, NaCl, MgO, KCl, CaO, H2SO4, HNO3, H2O, Na2CO3
Classify each of the following reactions as combination, decomposition, displacement or double displacement reaction. [5 MARKS]
Which of the following option shows the correct symbol and charge of elements present in CaCl2?