hanifstokes hanifstokes

24-03-2017
Chemistry

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Which of the following decomposition reactions is/are correct?
A) 2NaOH 2Na + O2 + H2
B) 2NaOH 2Na + H2O + 1/2O2
C) 2NaOH Na2O + H2O
D) 2NaOH 2Na + H2O2

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taskmasters taskmasters

07-04-2017

The generalized reaction for chemical decomposition is: AB → A + B

NaOH is sodium hydroxide. When sodium and water is combined it makes sodium hydroxide and hydrogen

When sodium hydroxide decomposes under thermal decomposition, it breaks down into sodium oxide and water.

Thus, C) 2NaOH Na2O + H2O

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