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prisoha [69]
3 years ago
8

When Rutherford discovered the atomic nucleus it helped develop which of the following ideas about the atom?

Chemistry
2 answers:
Snowcat [4.5K]3 years ago
8 0

Answer:

The correct answer is option D.

Explanation:

Rutherford gave an experiment known as gold foil experiment.

In his experiment, he took a gold foil and bombarded it with alpha particles (carrying positive charge). He thought that the particles will pass straight through the foil, but to his surprise, many of them passed through, some of them deflected their path and a few of them bounced back.

From this he concluded that in an atom, there exist a small positive charge in the center. Due to this positive charge, the alpha particles deflected their path and some of them bounced straight back their path.

  • Rutherford in his model of an atom proposed that in an atom positive charge is concentrated in the center of an atom.
  • The center where positive charge is located was termed as nucleus by him.
MatroZZZ [7]3 years ago
7 0
The answer to this is <span>D. The nucleus contained positively-charged particles. i am positive i just finished my chemistry class</span>
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Answer:

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Explanation:

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Coke is an impure form of carbon that is often used in the in- dustrial production of metals from their oxides. If a sample of c
steposvetlana [31]

Answer:

The mass of coke needed to react completely with 1.0 ton of copper(II) oxide is 0.794 Ton.

Explanation:

2CuO+C\rightarrow 2Cu+CO_2

1 Ton = 907185 grams

Mass of copper oxide = 1.0 Ton = 907185 grams

Moles of copper oxide =\frac{907185 g}{79.55 g/mol}=11,403.95 moles

According to reaction, 2 moles of copper oxide reacts with 1 mole of carbon.

Then 11403.95 moles of copper oxide will react with:

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Mass of 5,701.98 moles of carbon:

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95\%=\frac{68,423.75 g}{x}\times 100

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3 years ago
Atoms of hydrogen can become helium atoms during a chemical reaction.<br> True<br> False
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Answer:

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Explanation:

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Answer:

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Answer:

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