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Sliva [168]
3 years ago
10

Please answer fast!! Need help

Chemistry
2 answers:
Andrew [12]3 years ago
8 0
So the mass number is on the top and atomic number is on the bottom.
A. Is 7 ( mass )
Z. Is 3 ( atomic number )
X. Is lithium ( element )
Sauron [17]3 years ago
4 0
A=6
Z=3
X=Li (lithium)
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<h3>What is a precipitate?</h3>

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