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AleksAgata [21]
3 years ago
11

Uranium is a metallic element that is used in nuclear reactors and nuclear weapons. the vast majority of uranium found on earth

is in the form of uranium-238, an isotope with a mass number of 238, while the uranium that is used for nuclear reactors and weapons is uranium-235, an isotope with a mass number of 235. if the atomic number of uranium is 92, how many neutrons does an atom of uranium-235 have in its nucleus?
Chemistry
1 answer:
katrin [286]3 years ago
7 0
There will be 143 neutrons in uranium-235
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7 0
3 years ago
Sawing a board in half is an example of a chemical change
koban [17]

Sawing a board in half is a physical change not a chemical change the board doesnt change wood or whatever material it is is still would still be wood
If it were burned it would be a chemical change but its properties stay the same atomically so thats why its not a chemical change.

4 0
3 years ago
A student wants to make a fair comparison of the reactivity of the metals with hydrochloric acid.
Alenkinab [10]

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the concentration of the reactants

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blagie [28]

Answer:

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Explanation:

3 0
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