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Sholpan [36]
2 years ago
11

What is the atomic mass number ?

Chemistry
1 answer:
mrs_skeptik [129]2 years ago
4 0

Answer:

Total number of protons and neutrons in an atom

Explanation:

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Seawater is composed of salt, sand, and water. is seawater a heterogeneous or homogeneous mixture? explain
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Hydrogen peroxide can decompose to water and oxygen by the following reaction
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