The electrolysis of water has the equation 2H2O (l) → 2H2 (g) + O2 (g). What type of reaction is this? Question 9 options:

Question

The electrolysis of water has the equation 2H2O (l) → 2H2 (g) + O2 (g). What type of reaction is this?
Question 9 options:

A)

Single displacement

B)

Double displacement

C)

Decomposition

D)

Synthesis

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RI SƠ 2 months 2021-07-22T06:50:28+00:00 1 Answers 3 views 0

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    2021-07-22T06:51:55+00:00

    Answer: The correct option is C) decomposition

    Explanation:

    Single displacement reaction is defined as the reaction where a more reactive element displaces a less reactive element from its salt solution.

    AX+B\rightarrow BX+A

    Element B is more reactive than element A

    Double displacement reaction is defined as the reaction where an exchange of ions takes place in a solution

    AX+BY\rightarrow AY+BX

    Decomposition reaction is defined as the reaction where a single large chemical species breaks down into two or more smaller chemical species.

    AB\rightarrow A+B

    Synthesis reaction is defined as the reaction where two or more smaller chemical species combine together in their elemental state to form a single large chemical species.

    A+B\rightarrow AB

    For the given chemical reaction:

    2H_2O(l)\rightarrow 2H_2(g)+O_2(g)

    Here, water is breaking down into two smaller species of oxygen and hydrogen gas. Thus, it is a decomposition reaction.

    Hence, the correct option is C) decomposition

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