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  • 18-10-2019
  • Biology
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HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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shaymatariq11
shaymatariq11 shaymatariq11
  • 18-10-2019
1:they are made of atoms
2: atoms are the smallest particles while molecules is an electrically neutral group of two or more atoms held together
3:pure substance cannot be separated.mixture: is made by mixing substances together
4:compound is a pure substance

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