How can you test for oxygen?
Oxygen will relight a glowing splint.
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How can you test for hydrogen?
Hydrogen will make a squeaky pop sound when exposed to a lit splint.
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How can you test for carbon dioxide?
When bubbled through limewater, carbon dioxide will turn the limewater cloudy.
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How can you test for chlorine gas?
It turns damp red litmus paper from red to white.
Answer in your head, out loud, or on paper, then tap the card to flip.