Coefficients are used in a chemical formula to show the number of each element. True or False

Chemistry

1 answer:

ANTONII [103]2 years ago

5 0

Answer:

The same number of each element present before the reaction takes place must also be present on the product side of the equation. Coefficients are placed in front of a chemical formula to show the number of moles of that substances that are necessary for the reaction to occur.

Explanation:

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vazorg [7]

Answer:

A. 1, 2, 5

Explanation:

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Uranium – 235 has a half-life of 713 million years. Would uranium – 235 or carbon – 14 be more useful for dating Cambrian time e

kenny6666 [7]

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LuckyWell [14K]

First identify which is being oxidized and reduced. In this case, the Mg is being oxidized and the Hg is being reduced.

Mg --> Mg+2

<span>Hg+2 --> Hg+1
</span>
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$Mg$ ⇒ $Mg^{+2} + 2e^{-1}$

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mafiozo [28]

Answer:

B. Composed of molecules relatively far apart.

Explanation:

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