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Westkost [7]
3 years ago
5

Which of these are examples of physical changes? Check all that apply. burning wood freezing water cutting paper iron rusting mi

xing water and acetone
Chemistry
2 answers:
rodikova [14]3 years ago
5 0
Cutting paper
freezing water
mixing water
acetone
Colt1911 [192]3 years ago
4 0

<u>Answer:</u>

freezing water

cutting paper

mixing water and acetone




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Part 2 please and explain please
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1) 7.15 * 10^6

since the exponent of the scientific notation is positive, move 6 places to the right.

so, <em>7.15 * 10^6 = 7150000</em>

2) 3.03 * 10^-8

Since the exponent of the scientific notation is negative, move the decimal point 8 places to the left.

so,<em> 3.03 * 10^-8 = 0.0000000303</em>

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since the exponent of the scientific notation is negative, move 1 decimal place to the left.

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pashok25 [27]

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What are the various adverse effects of chemistry​
Kisachek [45]

<u>Answer:</u>

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The <em>product or compound</em> that we get and the energy or outcome we receive is the ultimate result that decides whether chemical reaction that has happened is good or bad.

There are reactions that may cause pain and suffering to living beings and  are also able to<em> Infuse damage and destruction</em> are are adverse nature. they can also change the course of nature hence are are <em>dangerous. </em>

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