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Question 4
Which of the following cannot be separated by physical means?
1.A sample of water molecules
2.A mixture of sand and water
3.A solution of salt water
4.Trail mix

Respuesta :

khotsosheldon

Answer:

3

Explanation:

because two solution are combined

Answer:

3. A sample of salt water

Explanation:

Because it is a compound of chemical elements, oxygen and hydrogen

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