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Biology, 07.05.2021 18:20 keith1577621
In chemistry, the elements are *
a. Pure chemical substances containing only one type of atom
b. Pure chemical substances containing two or more different types of atoms
c. Substances which can be burnt in the presence of air
d. Substances that do not react with other substances
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In chemistry, the elements are *
a. Pure chemical substances containing only one type of atom
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