acid Bases and salts

activity 2.1 what happens when indicators are added into acids and bases

activity 2.2 what happens when acid or base added into olfactory indicators

activity 2.3 what happens when zinc metal is added into dilute sulphuric acid

activity 2.4what happens when zinc metal is added into sodium hydroxide

activity 2.5 what happens when sodium carbonate and sodium bicarbonate added into acid


activity 2.6 Neutralisation reaction

activity 2.7 what happens when metal oxide is added into acid