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Westkost [7]
2 years ago
11

An unbalanced chemical equation is shown: 2NaN3 → 2Na + N2 Which of the following statements explains why the equation is not ba

lanced? (4 points)
Chemistry
2 answers:
morpeh [17]2 years ago
8 0

Answer:

When you fill in 2 reactants, you will have 6 N atoms but on the side of the product there are only 2 N atoms, so the equation cannot be balanced and for the equation to be equal, you need to fill 3 into the part N2 to have 6 N atoms

Explanation:

sashaice [31]2 years ago
6 0

Explanation:

2NaN3 => 2Na + N2

There are 6 nitrogen atoms on the left side but only 2 nitrogen atoms on the right side.

The equation would be balanced if there was a "3" infront of N2.

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Answer:

C. H_2S\rightarrow S+2H^++2e^-

Explanation:

Hello there!

In this case, according to the given chemical reaction, it turns out possible to realize there is one sulfur atom on each side of the chemical equation but two hydrogen atoms on the left and one on the right, which means the latter must be balanced in agreement to the law of conservation of mass.

In such a way, by setting a 2 on H⁺, the reaction will be balanced:

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Now, we count the transfer electrons for sulfur from -2 to 0 as 2e⁻ on the right, which will match with the option C.

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Regards!

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