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Marina86 [1]
3 years ago
15

I NEED HELP WITH 1-4 PLEASE ASAP!!!

Chemistry
1 answer:
Varvara68 [4.7K]3 years ago
5 0

Answer:

1 is the same    3 is pure substance 4 is different

Explanation:

not sure about 2

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How does the number of subatomic particles change as the carbon isotope<br> decays?
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Answer:

Explanation:

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Chemicals are classified as health hazards when they pose which of the following hazardous effects?
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Gravitational Potential Energy is created when an object’s what changes
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Determine which of these properties would distinguish these two substances: (a) boiling point; (b) combustion analysis results;
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Answer:

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3 years ago
Which two particles in an atom are equal in mass
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Note: They probably are ABOUT the same mass. Don't think they are exactly the same.

Hope this helps! 
8 0
3 years ago
Read 2 more answers
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