3 years ago

What did Rutherford discover in his gold foil experiment

2 answers:

8 0

Physicist Ernest Rutherford established the nuclear theory of the atom with his gold-foil experiment. When he shot a beam of alpha particles at a sheet of gold foil, a few of the particles were deflected. He concluded that a tiny, dense nucleus was causing the deflections

Hope this helps :)

Minchanka [31]3 years ago

7 0

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How many moles of methane are in 7.31x10^25 molecules?

lana [24]

Answer:

121.37 moles.

Explanation:

Always one mole of any molecule contains Avogadro number of molecules.

So one mole of methane contains 6.023*10^23 molecules.

Now we need number of moles of methane in 7.31*10^25 molecules.

This is just cross multiplication stuff.

6.023*10^23 molecules —————- 1 mole

7.31*10^25 molecules ——————- ?

= (7.31*10^25) / (6.023*10^23)

= 121.37 moles.

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3 years ago

The ph of an acid solution is 6.20. Calculate the ka for the acid. The acid concentration is 0.010 m.

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4 years ago

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<h2>♨ANSWER♥</h2>

The respiratory system supplies oxygen to the blood and removes carbon dioxide. The brain monitors respiratory volume and blood gas levels. The brain regulates respiratory rate.

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_♡_mashi_♡_

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2 years ago

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MatroZZZ [7]

I thinks it's C although I'm not 100% positive.

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3 years ago

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