The question ask for the percentage of the abundance of galium-69 where there is two isotopes of galium: the 69Ga and the 71Ga. The average atomic mass of gallium is 69.723 amu. So the formula would be <span>69.723amu=(%x)∗(68.926amu)+(1−%x)∗(70.025amu) and the answer to this is 1.58%</span>
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Whats the hypothesis and the experiment?
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I cant really help without context
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Option D. The nervous system regulates the movement of the muscular system.
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The nervous system regulates the movement of the muscles as they receive signals from both the brain and nerve cells
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Its a simple SERIES circuit
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