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aksik [14]
3 years ago
12

A person can have the same momentum as a train?True or False​

Chemistry
1 answer:
mestny [16]3 years ago
8 0
The answer is true !!!
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Which word equation best describes the following formula equation:<br> 4Al + 302 + 2Al2O3?
liberstina [14]

Answer:

Explanation:

The equation is not correctly written, so let's start with that.

4Al + 3O2 ====> 2Al2O3?

Totally correct, including the balance numbers, would be

4moles aluminum + 3 moles Oxygen ===> 2 moles of Aluminum Oxide

Anything else is incomplete.

6 0
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3 years ago
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A molecular biologist measures the mass of cofactor a in an average yeast cell. the mass is 41.5 pg . what is the total mass in
Hitman42 [59]
The unit pg stands for pictogram. It is one-trillionth of a gram. Because of the very small mass, it is expressed in the prefix form of the base units for convenience. Now, the mass of cofactor a is 41.5 pg per cell. Since there are a total of 105 cells, the total mass would be:

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