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OleMash [197]
3 years ago
11

The nucleus of an atom is ___.​

Chemistry
1 answer:
ira [324]3 years ago
4 0

The nucleus of an atom is made out of <u>protons</u> and <u>newtons.</u>

hope this helps!

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How many moles of oxygen are produced when 2 mol of potassium chlorate (KClO3) decompose
ioda
Keep in mind that when two moles of potassium chlorate are decomposed, 3 moles of oxygen are produced.Think of  the coefficients: since the mole ratio is 2 to 3, it means that<span> 2 mol KClO3 will turn into 3 mol O2.
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How many grarns would 3 moles of carbon dioxide (CO2) weigh? (round to the
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<h3>Further explanation   </h3>

A mole is a number of particles(atoms, molecules, ions)  in a substance

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\tt mass=mol\times MW\\\\mass=3\times 44.01\\\\mass=132.03~g\approx 132~g

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