Chemistry

Fernanda Love

23 February, 20:54

Which one of the following is a solution?

Question 21 options:

oxygen

salt water

sugar

chocolate chip cookies

Which of the following is a compound?

sugar

chocolate chip cookies

oxygen

salt water

Why is water considered a pure substance and not a mixture?

Question 23 options:

Water can be separated physically into hydrogen and oxygen.

Water is clear.

Water can be separated chemically into hydrogen and oxygen.

Water is not a pure substance. It is a mixture.

How can a mixture of pigments be separated?

Question 24 options:

filtration

crystallization

magnetic attraction

chromatography