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Rainbow [258]
3 years ago
8

Word Bank: automobiles, fossil fuels, plastic packaging, planes, trains _________________________ requires oil to create it.

Chemistry
1 answer:
Ymorist [56]3 years ago
7 0
Plastic packaging requires oil to create it
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If you were able to magnify a penny down to the atomic level, what two
Lena [83]

The two observations you would make about the atoms are

  1. They are made up largely of empty space
  2. Their mass is concentrated at the center called a nucleus

These observations were made by Ernest Rutherford in his model of the atom established in 1911, when he performed his gold foil experiment and observed the scattering angle of the alpha particles which led him to conclude that the mass of the atom was concentrated at the center.

Also, that most of the alpha particles also went through the gold foil suggested that the atom was made up basically of empty space.

So,

The two observations you would make about the atoms are

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  2. Their mass is concentrated at the center called a nucleus

Learn more about the atom here:

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3 years ago
What is the mass of an element with 78 protons and 78 neutrons
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What would happen when a substance changes from one phase to another? A. The substance loses or gains heat. B. The average kinet
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3 0
2 years ago
Why is it possible to compress a gas
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Gas can be compress easily than liquid or solid because, molecules are more spread in gas than solin or liquid.

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2 years ago
Which reaction describes an alpha emission?
Tcecarenko [31]

88226Ra→ 86222Rn + 24He is the reaction that describes an alpha emission because radiations are released.

<h3>Describes an alpha emission?</h3>

Alpha radiation occurs when the nucleus of an atom becomes unstable and alpha particles are released in order to restore stability. Alpha decay occurs in elements that have high atomic numbers, such as uranium, radium, and thorium etc.

So we can conclude that 88226Ra→ 86222Rn + 24He is the reaction that describes an alpha emission because radiations are released.

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2 years ago
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