1. Physical & Chemical Properties and Changes, and Density

2. 1) The rock has a mass of 15.2g. This would be considered a ___________ of the rock. 1.Physical property 2.Physical change 3.Chemical property 4.Chemical change

3. 2) The piece of metal is rusting in the salty water. This would be considered a 1.Physical property 2.Physical change 3.Chemical property 4.Chemical change

4. 3) The density of water is 1.0g/mL. This would be considered a 1.Physical property 2.Physical change 3.Chemical property 4.Chemical change

5. 4) Water can decompose (break down) to form hydrogen gas and oxygen gas. This would be considered a 1.Physical property 2.Physical change 3.Chemical property 4.Chemical change

6. 5) Which of the following is not a possible unit of measurement for density? 1.g/mL 2.g/cm 3.g/cm 3

7. 6) An object has a mass of 2.52g and a volume of 3.2mL. What is the density of this object? 1. 8.1g/mL 2. 5.7g/mL 3. 0.78g/mL 4. 0.68g/mL

8. 7) Copper can be easily hammered/shaped into thin sheets. This is because copper is 1.Brittle 2.A good conductor of electricity 3.A good conductor of heat 4.Malleable

9. 8) An object has a density of 4.2g/mL. This object will __________. 1.Float in water. 2.Sink in water. 3.Remain suspended in the middle of the water.

10. Classification of Matter

11. 1) Defined as the amount of matter in an object. (not affected by gravity) 1.Mass 2.Volume 3.Density 4.Length 5.Weight

12. 2) Defined as the amount of space occupied by an object. 1.Mass 2.Volume 3.Density 4.Length 5.Weight

13. 3) Which of the following is not considered a pure substance? 1.Element 2.Compound 3.Salt water 4.Iron, Fe

14. 4) Heterogenous mixtures 1.Are pure substances 2.Are evenly mixed throughout 3.Have a Tyndall effect

15. 5) What is the solvent in a mixture of 5cups of water, 1 tablespoon of sugar and 2 drops of food coloring. 1.Water 2.Sugar 3.Food coloring

16. 6) Homogeneous mixtures are also called 1.Suspensions 2.Heterogeneous mixtures 3.Colloids 4.Solutions 5.Compounds