State and explain the changes in mass that occur when substances are separately heated in open crucibles eg .1 )copper metal 2)copper

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State and explain the changes in mass that occur when substances are separately heated in open crucibles eg .1 )copper metal
2)copper 2 nitrate

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Huyền Thanh 3 years 2021-09-05T15:07:12+00:00 1 Answers 69 views 0

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  1. thongdat2
    0
    2021-09-05T15:08:28+00:00
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    Answer:

    1)Mass increases .

    2) Mass decreases

    Explanation:

    1)because oxygen combine with copper metal .

    2)it decomposes into gases that escape.

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