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mrs_skeptik [129]
2 years ago
11

A substance that has a uniform composition and is able to be separated by physical means

Chemistry
1 answer:
azamat2 years ago
7 0
The answer is homogeneous mixture. It is a mixture which has uniform composition and properties all throughout. Mixtures can be separated by physical processes. Mixtures are systems that consist of two or more substances which are mixed but not chemically combined.
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Answer:

Here's the conversion factor you need:

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So, for your question we want to go 405,696 km....

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15972283464 inches   x   2.54 x10^8 atoms/1 inch   =   4.05 x 10^18 atoms

                                     

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