zakiashiqul zakiashiqul

19-04-2021
Chemistry

contestada

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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angiemwanga angiemwanga

24-04-2021

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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