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cestrela7 [59]
4 years ago
14

(Please someone help! This is chemistry)

Chemistry
1 answer:
Firlakuza [10]4 years ago
5 0

Answer:

0.00079

When you round 0.000789 to 2 significant figures you would get

0.00079

because the zeros are just place holders if they are right after the decimal and don't have other numbers between them

then 789 rounds up to 790, which is 79

Explanation:

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Answer:

r_{H_2} = \frac{-1}{2} r_{HI}

Explanation:

Hello!

In this case, considering the given chemical reaction:

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Thus, by applying the law of rate proportions, we can write:

\frac{1}{-1} r_{H_2} = \frac{1}{-1}r_{i_2} = \frac{1}{2} r_{HI}

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r_{H_2} = \frac{-1}{2} r_{HI}

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