1
Q
CO2 test
A
Put it with lime water and wait for it to turn milky
2
Q
O2 test
A
Relights glowing splint
3
Q
H test
A
Put a lit splint above a test tube of Hydrogen and wait for a squeaky pop
CO2 test
Put it with lime water and wait for it to turn milky
O2 test
Relights glowing splint
H test
Put a lit splint above a test tube of Hydrogen and wait for a squeaky pop
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