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5.2 gas test

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Total cards: 11•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (11)

#1
Front (Question)

Test for hydrogen

Back (Answer)

squeaky pop test collect a sample of gas in a test tube attempt to ignite the gas using a lit splint positive result squeaky pop

#2
Front (Question)

test for oxygen

Back (Answer)

glowing splint collect a sample of gas in a test tube place a glowing splint into test tube positive result- the splint relights

#3
Front (Question)

test for water

Back (Answer)

we test for water in two ways presence: 1. Add anhydrous copper sulphate (cuSO4) positive result it changes from white to blue Purity: 2. We measure it’s boiling point positive result -closer 100c= more pure

#4
Front (Question)

test for carbon dioxide

Back (Answer)

limewater test bubble a sample of gas through lime water positive result- lime water turns cloudy( White precipitates forms)

#5
Front (Question)

test for chlorine

Back (Answer)

damp blue litmus paper place damp blue litmus paper in a sample of gas positive result - it turns white (bleaches it )

#6
Front (Question)

Test for ammonia

Back (Answer)

damp red litmus paper place damp red litmus paper in a sample of gas positive result - it turns blue

#7
Front (Question)

Flame test for Li result

Back (Answer)

Red

#8
Front (Question)

flame test for Na result

Back (Answer)

yellow

#9
Front (Question)

flame test for k result

Back (Answer)

lilac

#10
Front (Question)

flame test for Ca2+ result

Back (Answer)

Orange- red

#11
Front (Question)

flame test for Cu2+ result

Back (Answer)

blue- green