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Artemon [7]
3 years ago
8

An ion has a charge of +7. How far is it from being neutral?

Mathematics
1 answer:
rusak2 [61]3 years ago
6 0

Answer:

The answer is B. -7

Step-by-step explanation:

the -7 cancels out the +7 which makes it neutral

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Answer:

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Step-by-step explanation:

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Ira Lisetskai [31]

<u>Answer:</u>

The correct answer option is c. \frac{1}{9a^2}.

<u>Step-by-step explanation:</u>

We are given an expression (27a^{-3})^{-\frac{2}{3} } and we are supposed to simplify it.

We can also write (27a^{-3})^{-\frac{2}{3} } as (\frac{3^3}{a^3} )^{-\frac{2}{3} }.

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So multiplying the exponents to get:

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Therefore, the correct answer option is c. \frac{1}{9a^2}.

4 0
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