Question

Which statements are true of heterogeneous mixtures?

1) They settle out.
2) The proportions of solute to solvent may vary.
3) The solute is evenly distributed throughout.
4) They are composed of two solvents and two solutes.

Answer 1

Which statements are true of heterogeneous mixtures?

Answer: Of the following statements shown above the ones that are true of heterogeneous mixtures are 1 and 2.

-They settle out
-The proportions of solute to solvent may vary.

I hope it helps, Regards.

Answer 2

Answer is:

1) They settle out.

2) The proportions of solute to solvent may vary.

For example, sample of sand is heterogeneous mixture.

Heterogeneous mixture is not uniform in composition (in this mixture different metals and minerals), but proportions of its components (in this mixture particles of different colors, small pebbles) vary throughout the sample.

Another example is suspension.

Suspension is a heterogeneous mixture (solute particles do not dissolve), that contains solid particles (for example nickel sulfide or NiS) sufficiently large for sedimentation. The internal phase (solid nickel sulfide) is dispersed throughout the external phase (water).