1. 2.1-2.2
Gabriel Burson

2. Mixtures
Mixtures consist of two or more substances that can
be physically separated and are not chemically
combined. The characteristic properties of the
substances do not change.
Heterogeneous mixture Homogeneous mixture

3. Elements
Elements cannot be physically or chemically broken
apart into anything else. They are the simplest form of a
pure substance.

4. Compounds
Compounds are composed of two or more pure
substance that are chemically combined. Compounds
do not retain to their characteristic properties and can
be separated chemically.

5. Alloys
An alloy is a mixture of two or more metals.

6. Colloid
A colloid has particles that are mixed together, but not
dissolved.

7. Solution
A solution is a homogeneous mixture that is fully mixed.
It has a solute and a solvent.

8. Distillation
A process that separates the substances in a solution
based on their boiling points.

9. Filtration
A process that separates materials based on the size of
their particles and/or solubility.

10. Evaporation
A process used to isolate a solid dissolved in a liquid.

11. Flammability
Flammability is a material’s ability to burn in the
presence of oxygen.

12. Reactivity
Reactivity is the property that describes how fast a
substance combines chemically with another.

13. Chemical changes
Change in color, production of gas, formation of a
precipitate.

14. Give an example of a colloid

15. How would you separate sugar dissolved
in water and collect a sample of each?

16. Is this a chemical or physical change?

17. Give an example of a heterogeneous
mixture

18. Explain how you would calculate the density, volume, and
mass of each substance within a mixture of alcohol and
water