identifying gases

Question 1

give the properties, test, and result of ammonia

Answer 1

properties: sharp smell, colourless, alkaline gas
test: hold red litmus paper
result: turns blue

Question 2

give the properties, test, and result of carbon dioxide

Answer 2

properties: colourless, weak acidic gas. reacts with limewater to give precipitate of calcium carbonate
CO_2(g)+Ca(OH)_2(aq)→CaCO_3(s)+H_2O(l)
test: bubbles it through limewater
result: turns milky

Question 3

give the properties, test and result of chlorine

Answer 3

properties: green, poisonous gas, bleaches dye
test: hold damp indicator in test fume cupboard
result: indicator paper turns white