Chapter 1: Chemical reactions and equations

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Chemical reactions and equations

Question:

Why is the amount of gas collected in one of the test tubes in textbook Activity 1.7 (i.e., electrolysis of water) double of the amount collected in the other? Name this gas

Answer:

Electrolysis is a type of decomposition reaction in which the reactant breaks into two or more products with the help of electric current. Activity 1.7 shows the electrolysis of water in which the water decomposed into hydrogen and oxygen gas when electricity passed through it. The balanced chemical equation for this reaction is shown below:

2H2O (l) → 2H2 (g) + O2 (g)


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