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Chemistry, 23.08.2019 03:40 ella3714

Are these mixtures or pure substance?
1.water
2.blood
3.the oceans
4.iron 5.brass
6.uranium
7.wine
8.leather
9.table salt (nacl)

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Are these mixtures or pure substance?
1.water
2.blood
3.the oceans
4.iro...
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