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Alexeev081 [22]
3 years ago
12

Which of the following is true regarding the law of conservation of mass?

Chemistry
1 answer:
nexus9112 [7]3 years ago
8 0
A is correct................
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If you are given only the mass number of neutrons, how do we find an atomic number?
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Mass number is the sum of protons and neutrons.

Atomic number is the total number of protons present.

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Atomic number = protons present.

From the above equations we can conclude that,

Atomic number= Mass number- neutrons.

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Which of the following is an example of how a scientist might use a model?
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The rules of engagement (roe) working group is often used to _____. (select all that apply.)
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proactively develop ROE as well as responding to requests for additional ROE measures

Explanation:

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4 years ago
CO<br> +<br> -<br> 02<br> CO2<br> Balance the equation
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