Science

posted by Trover

1. Which of the following is true about mixtures? (1 point)
Mixtures consist of two or more substances chemically combined.
Mixtures cannot be separated by physical means.
Mixtures consist of only one kind of atom.
Mixtures have two or more substances mixed together, but are not chemically combined.••

2. The substances in a(n) ________________ mixture are usually easily seen and separated. (1 point)
homogeneous
heterogeneous•
uniform
uncontaminated

3. A mixture of iron and sulfur can be separated by __________________.
(1 point)
magnetic attraction•
distillation
evaporation
filtration

4. Michelle wants to separate salt from water. She tried pouring the saltwater through a piece of filter paper, but the salt did not separate from the water. What change should she make to her plan to separate the mixture successfully? (1 point)
use two pieces of filter paper instead of one
freeze the saltwater, and then let it melt again
allow the water to evaporate•
stir the saltwater with a magnet

Correct me if I'm wrong

  1. bobpursley

    all correct.

  2. Trover

    Okay thanks for correcting my answers!!:)

  3. kid from connexs

    which one for 4

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