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swat32
3 years ago
12

PLEASE HELP ME!!!!!!!!

Chemistry
2 answers:
ch4aika [34]3 years ago
7 0
So it has to be either the second or the third one, so let's focus on that. If the substance can make energy in a power plant, then it is most likely Uranium. Uranium is usually radioactive. Now the third one talks about fission, where the atoms that are unstable break apart into smaller atoms to become more stable. I'd say the second one, because it is obviously radioactive.
Mazyrski [523]3 years ago
6 0
I think the answer is c
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Answer:

  the number of neutrons in the nucleus

Explanation:

The mass number 205 is the total number of protons and neutrons in the nucleus. Lead has 82 protons, so a mass number of 205 indicates a nucleus with 123 neutrons.

Similarly, the mass number 208 indicates a lead nucleus with 126 neutrons.

The difference in atomic structure is the difference in the number of neutrons in the nucleus.

5 0
3 years ago
When the temperature of a reacting mixture increases, the rate of reaction increases. Which statement explains why the rate of r
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3 0
3 years ago
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malfutka [58]
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3 0
2 years ago
1. define speed
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5 0
2 years ago
What is the correct chemical equation for the reaction between methane and oxygen to produce carbon dioxide and water?
kodGreya [7K]

Answer:

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Explanation:

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3 0
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