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Dima020 [189]
3 years ago
13

I need please fast ASAP

Chemistry
1 answer:
sdas [7]3 years ago
4 0
Kindly checkout the attached pic. It contains all your required questions. 

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slavikrds [6]

Answer:

There are multiple ways to check mass but I'll tell you one. Look below

Explanation:

One easy way of checking atomic mass is by adding protons and neutrons.

For example:

We have 5 protons and 4 neutrons.

5+4=9

I hope this helps (:

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Please help asap!!!!
djyliett [7]
B is the answer..!
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spin [16.1K]

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barxatty [35]

Answer:

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I helped you out with two of them

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