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WITCHER [35]
2 years ago
11

Please answer this question ASAP

Chemistry
1 answer:
Nezavi [6.7K]2 years ago
4 0

Answer:

put a test tube over the opening, remove it and quickly put a lit splint near the mout or in the tube. if you hear a squeaky pop it is hydrogen.

Explanation:

hydrogen ignites in air.

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