1 answer:
Answer:
A = 65.46 u
Explanation:
Given that,
The composition of zinc is as follows :
Zn-64 = 48.63%
Zn-66 = 27.90%
Zn-67 = 4.10%
Zn-68 = 18.75%
Zn-70 = .62%
We need to find the average atomic mass of the given element. It can be solved as follows :

So, the average atomic mass of zinc is 65.46 u.
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A) 0.1005 m
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Answer:
1 g + 10 g
Explanation:
The answer would be electronegativity
3.5 M has 3.5 moles per litre
so we have one litre, so we need 3.5 moles
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3.5 * 23 = 80.5