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3 years ago

9

An atom has 20 protons, 26 neutrons, and 20 electrons. what could be the atomic mass of this atom?

1 answer:

Elanso [62]3 years ago

7 0

46 is the answer. because if you add 26 and 20 that is the mass

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<u>Answer:</u> The equilibrium concentration of bromine gas is 0.00135 M

<u>Explanation:</u>

We are given:

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<u>Initial:</u> 0.02 0.03

<u>At eqllm:</u> 0.02-2x x 0.03+x

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