1
Q
What is the test for oxygen
A
If oxygen is present in a test tube, a lit splint relights when it is held inside.
2
Q
what is the test for hydrogen
A
Hydrogen ignites in air. If hydrogen is present in a test tube, a lighted splint held near its mouth ignites with a squeaky pop.
3
Q
what is the test for carbon dioxide
A
Use lime water.
If carbon dioxide is bubbled through limewater, the limewater turns milky or cloudy white.
4
Q
what is the test for chlorine
A
Damp litmus paper is bleached white when it is placed in chlorine.
If damp blue litmus paper is used, the paper turns red then white.
5
Q
what ions do acids produce
A
h+ ions
Chemistry
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