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Allushta [10]
3 years ago
6

Which is true of an element?

Chemistry
2 answers:
mixas84 [53]3 years ago
7 0

Answer:

it has different kind of atom

Explanation:

i think

miskamm [114]3 years ago
5 0

Answer:

b it has different kinds of atoms

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Nitrogen dioxide decomposes to nitric oxide and oxygen via the reaction: 2NO2 → 2NO + O2 In a particular experiment at 300 °C, [
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Answer:

rate=-1.75x10^{-5}\frac{M}{s}

Explanation:

Hello,

In this case, for the given information, we can compute the rate of disappearance of NO₂ by using the following rate relationship:

rate=\frac{1}{2}*\frac{C_f-C_0}{t_f-t_0}

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rate=\frac{1}{2}*\frac{0.00650M-0.0100M}{100s-0s}\\\\rate=-1.75x10^{-5}\frac{M}{s}

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