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Morgarella [4.7K]
3 years ago
12

Which particle affects the mass number of an atom?

Chemistry
1 answer:
inessss [21]3 years ago
5 0
The number of neutrons is variable, resulting in isotopes, which are different forms of the same atom that vary only in the number of neutrons they possess. Together, the number of protons and the number of neutrons determine an element's mass number.
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Explain how you would calculate the q for warming 100.0 grams of liquid water from 0°C to 100 °C.
mojhsa [17]

Answer:

mass = 100 g

T1 = 0°C

T2 = 100 °C

C = 1 cal/g°C

Q = mC(T2 -T1)

Q = 100(1)(100 - 0)

Q = 100(100)

Q = 10000 cal

Explanation:

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The properties of a substance are not affected by chemical reactions.<br> O True<br> O False
ElenaW [278]

Answer:

False

Explanation:

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liberstina [14]

Explanation:

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1).  a chemical bond formed by the electrostatic attraction between ions - ionic bond

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4).  the smallest particle of a covalently bonded substance - molecule

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7 0
3 years ago
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atroni [7]

Answer:

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Explanation:

4 0
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Harlamova29_29 [7]

Answer:

Gravity is very important for us,animals and plants. We could not survive Earth without it. The sun's gravity keeps Earth in orbit around it, keeping us a good distance away from it (the sun). Gravity is holding down our atmosphere and the air we need to breathe along with it.

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3 years ago
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