F4 Chap 6 salt - colour

lights a glowing wooden splinter

• hydrogen gas

• oxygen gas

Produces 'pop' sound with the lighted wooden splinter

• hydrogen gas

• oxygen gas

Lime water turns cloudy

• carbon dioxide gas

• sulphur dioxide gas

produces white fumes with hydorgen choride gas

• carbon dioxide gas

• ammonia gas

bleaches a moist red litmus paper

• ammonia gas

• chlorine gas

Brown gas with pungent smell that turns moist blue litmus paper red

• nitrogen dioxide gas

• suphur dioxide gas

Changes the white colour of anhydrate copper(II) sulphate to blue

• water

• ammonia

bleaches the purple colour of acidified potassium manganate(VII)

• sulphur dioxide gas

• hydrogen chloride gas

Do not decompose by heat

• calcium carbonate

• sodium carbonate

Original colour is green

no change after heat

• Iron(II) carbonate

• Iron (III) carbonate