draveon6925
21.04.2021 •
Chemistry
Balance : _ Na + _ H2O
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Ответ:
2, 2
Explanation
Ответ:
2) All atoms of a given element are identical in mass and properties
3) Compounds are formed by a combination of two or more different kinds of atoms.
4) A chemical reaction is a rearrangement of atoms.
1 and 2 were proved wrong.