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nlexa [21]
3 years ago
13

Ins1502 assignment 03​

Chemistry
1 answer:
dezoksy [38]3 years ago
5 0

Answer:

I think you forgot to post the question or picture

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FIRST ANSWER = BRAINLIEST
STALIN [3.7K]

A_{r} = 24.3

The average atomic mass of X is the <em>weighted average</em> of the atomic masses of its isotopes.  

We multiply the atomic mass of each isotope by a number representing its <em>relative importance</em> (i.e., its % abundance).  

Thus,  

0.790 × 24 u = 18.96 u

0.100 × 25 u =   2.50 u

0.110 × 26 u =    <u>2.86 u</u>  

       TOTAL =  24.3   u

∴ The relative atomic mass of X is 24.3.


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katen-ka-za [31]

Answer:

d.

Explanation:

hope i help you

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