Question

electrolysis of water .observe the figure and answer the following question.
1)did you see the gas bubble forming near the electrodes in the test tubes?
2)are these gases heavier or lighter than water?
3)are the volumes of the gases collected over the solution in the two test tube the same or different?
4)give chemical reactions of gas formed near the cathode and anode .

Answer 1

1. yes

2. lighter than water

3. different

4.2h2o>h2+o2

Answer 2

Answer:

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