1)burned wood-chemical
crushed rock-physical
dissolved sugar-physical
rusted iron- chemical
(these made sense!)
2)these a little harder for me
milk-mixture
table salt- thought this was pure but iodized makes it impure!
sugar- pure
steel- thought this was pure, too!
3)Coffee is non-homogenous and impure
WRONG! I would've thought there were other substances, but it is homogenous
4)Boiling water was physical and physical, but I thought the boiling point would be chemical...interesting:)
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