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sineoko [7]
3 years ago
11

Please help me do three

Chemistry
1 answer:
Orlov [11]3 years ago
6 0

Answer:

3a) (NH₄)₂ CO₂

b) FeF₂

c) CaN₂

d) Al₂O₃

e) NiCl₂

f) Mg₃P₂

g) KHCO₃

h) PbOH₂

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C) the study of the composition of the atom.

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3 0
3 years ago
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An artifact contains one-fourth as much carbon-14 as the atmosphere. how old is the artifact
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<h3><u>Answer;</u></h3>

= 11,460 years

<h3><u>Explanation;</u></h3>
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3 years ago
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3 years ago
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