Finish off and balance the following reactions

 

 

1 Magnesium oxide + Nitric acid          
2 Calcium hydroxide + Sulphuric acid          
3 Sodium

+

Hydrochloric acid          
4 Strontium Carbonate + Nitric acid          
5 Aluminium + Phosphoric acid          
6 Gallium hydroxide + Sulphuric acid          
7 Aluminium carbonate + Nitric acid          
8 Gallium carbonate + sulphuric acid