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3 years ago

Given the equation: 2Na + 2H2O → 2NaOH + H2 Which substance in this equation is a binary compound?

Chemistry

2 answers:

Blababa [14]3 years ago

8 0

By the definition of a binary compound, the answer is NaOH.

Leto [7]3 years ago

6 0

Answer: In the following equation, $H_2O$ is considered as a binary compound.

Explanation: A binary compound is considered as a compound having 2 elements only. In the following chemical equation:

$2Na+2H_2O\rightarrow 2NaOH+H_2$

There are 2 compounds present because compound is defined as the chemical combination of two or more elements in a fixed ratio.

In the equation, compounds are: $H_2O$ and $NaOH$

$H_2O$ consists of 2 elements which are hydrogen and oxygen and hence is considered as a binary compound.

$NaOH$ consists of 3 elements which are sodium, hydrogen and oxygen and hence, cannot be considered as a binary compound.

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To balance the redox reaction, we must first break the whole reaction into half equations;

Oxidation half equation

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Reduction half equation

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Now combine both the reactions

$\rm 5C_2O_4^2-(aq) + 2MnO4^- (aq) + 16H^+----- > 10CO_2(g) + 2Mn^2+(aq) + 8H_2O(l)$

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