Grade 7 Practical Chemistry

analysis of water

to study conditions of rusting

preparation of oxygen by heating mercuric oxide

laboratory preparation of oxygen gas from ho2

laboratory preparation of carbon dioxide

to show the formation to show the formation of carbon dioxide from sodium carbonate and dilute sulphuric acid of carbon dioxide from sodium carbonate and dilute sulphuric acid

to show the sodium hydrogen carbonate (baking soda) on strong heating produces carbon dioxide gas

to obtain an acid by burning sulphur

to show the effect of acids on indicators

to study the effect of alkalis on indicator

to prepare a basic acid and an alkali from a metal

to show that acid react with alkalis and a neutralization reaction take place

to prove that hydrated copper sulphate contains water

water cycle-circulation of water

purification of water by distillation

purification of water for supply in town and cities