I will give BRAINIEst please!!! help meeee omg what is the percent composition of each element? a.NaOH b.CuBr2

Question

I will give BRAINIEst please!!! help meeee omg

what is the percent composition of each element?
a.NaOH

b.CuBr2

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Edana Edana 5 years 2021-08-11T23:04:44+00:00 1 Answers 30 views 0

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  1. kimcuc
    0
    2021-08-11T23:05:48+00:00
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    Answer:

    (a)57.48 percent (b) 29.45 percent

    Explanation:

    copper(II) bromide is 29.45 percent copper and 71.54 percent bromine. so the first element percentage composition is always the percentage composition of the compound.

    that goes same with sodium hydroxide. it  is 57.48 percent sodium, 40 percent oxygen, and 2.52 percent hydrogen.

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )