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Elza [17]
3 years ago
9

An atom which has 9 protons, 8 neutrons, and 9 electrons will have an atomic mass of how many amu?

Chemistry
1 answer:
rjkz [21]3 years ago
8 0

Answer:

D

Explanation:

Protons and Neutrons both have a mass of about 1 amu so you add them but electrons have a mass of 0 amu so they are left out.

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Adult Bone Marrow has stem cells that are not as "good" as embryonic ones but they still can become red blood and skin cells
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Blackmail threat of informational disclosure is an example of which threat category?
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Information Extortion.

Explanation:

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What part of the atom determines if it will combine or break apart from other substances
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4 years ago
What are the three heredity rules ?
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4 years ago
The scale reads "16.121 grams", which number(s) is/are "estimated by the scale?
luda_lava [24]

Answer:

See explanation

Explanation:

There are different kinds of analytical balances that read the mass of objects weighed in them to one, two, three or four decimal places as the case may be.

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Hence, the scale may read 16.12 as the case may be.

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