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ELEN [110]
3 years ago
5

What is radioactivity.

Chemistry
1 answer:
Serggg [28]3 years ago
5 0
Radioactivity another name for radioactive decay. Radioactivity refers to particles emitted from nuclei as a result of nuclear instability. 
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what kind of evidence indicates a chemical change ?... a physical change? you may use examples to show softened.
SOVA2 [1]
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Explanation:

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When you put your cold hands under your legs to warm your hands up, the heat energy from your legs is being transferred to your hands through conduction. However, since energy cannot be created, there is no extra heat energy that can instantaneously replace the heat created by your legs.

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A mixture of uneven distribution and easy separation is called_____. homogeneous heterogeneous a solution a pure substance
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The correct answer is heterogeneous.
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