Question

1. what chemical property is responsible for iron rusting? a. flammability b. conductivity c. nonflammability d. reactivity with oxygen 8. the motion of a 150 g ball is more difficult to change than the motion of a 50 g ball because the 150 g ball has a. less weight than the 50 g ball has. b. greater density than the 50 g ball has. c. more mass than the 50 g ball has. d. larger volume than the 50 g ball has. 9. what unit of density would be appropriate to describe a solid bar of silver? a. g/ml b. g/cm³ c. oz/ft³ d. kg/l 10. which physical property of matter describes the relationship between mass and volume? a. density b. ductility c. reactivity d. weight 11. souring milk is an example of a a. physical property. b. physical change. c. chemical property. d. chemical change. 12. malleability is an example of a a. physical property. b. physical change. c. chemical property. d. chemical change.

Explanation:

1. Iron rusts due to its reactivity with oxygen, which is a chemical property.
2. Mass is a measure of inertia. A 150 g ball has more mass than a 50 g ball, so its motion is more difficult to change.
3. For a solid, the common unit of density is g/cm³.
4. Density is defined as the ratio of mass to volume, which is a physical property of matter.
5. Souring milk involves a chemical reaction, so it is a chemical change.
6. Malleability, the ability to be hammered into thin sheets, is a physical property of matter.

Answer:

1. d. reactivity with oxygen
2. c. more mass than the 50 g ball has.
3. b. g/cm³
4. a. density
5. d. chemical change.
6. a. physical property.