Dịch:ko dùng google dịch vì hay bị sai
-A mixture contains different subtances that are not chemically joined to each other.
-Pure subtances are composed of only one kind of molecule in it.Most of the things in this world are mixtures.
-A mixture can be separated physically or chemically.
-When a salt and water mixture is separated by heating,pure water can be obtained.
Answer the questions:(bằng tiếng anh)
1.how can you separate a mixture of water and sand?
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Đọc tiếp
Dịch:ko dùng google dịch vì hay bị sai
-A mixture contains different subtances that are not chemically joined to each other.
-Pure subtances are composed of only one kind of molecule in it.Most of the things in this world are mixtures.
-A mixture can be separated physically or chemically.
-When a salt and water mixture is separated by heating,pure water can be obtained.
Answer the questions:(bằng tiếng anh)
1.how can you separate a mixture of water and sand?
..................................................................................................................................................................................................................................................................................................................................................................................................................
2.What can you do to separate iron filings and salt
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Hepl.Ngay mai tui thi roi!Thanks