Test Unit 2

Question 1

Name one similarity between compounds and homogenous mixtures and one difference.

Answer 1

Similarity- They are both pure substances

Difference- Mixture is physically combined while compounds are chemically combined

Question 2

List and explain the three factors that increase the solubility (dissolving) rate of a substance.

Answer 2

1. Smaller solute size
   - Increases the surface area of the solute solvent has more places for contact
2. Heating the solvent
   - Increasing the temperature increases the kinetic energy of the particle therefore more collisions
3. Stirring the solution
   - Brings fresh solvent in contact with undissolved solute

Question 3

For an answer to your problem you should include what?

Answer 3

Number+Unit