Question

chapter 12 test: matter, properties and changes
total questions: 24
worksheet time: 12min
instructor name: allison millard

1. a characteristic of matter that allows it to change to something new is a

a) physical change b) chemical change
c) chemical property d) physical property

1. the following are examples of chemical properties except

a) ability to burn b) ability to be crushed
c) toxicity d) ability to react with oxygen

1. __________ is a physical property

a) flammability b) density
c) combustibility d) oxidation

1. density depends on __________

a) volume b) weight
c) mass d) mass and volume

1. you can separate sugar from sand because sugar is __________ and sand is not

a) soluble in water b) ductile
c) malleable d) solid

1. an example of a chemical property is __________

a) ability to be attracted by a magnet b) ability to react with oxygen
c) boiling point d) solubility

1. which of the following is not a physical property of matter

a) density b) melting point
c) flammability d) solubility

Explanation:

1. A chemical property allows matter to change into something new. Physical changes don't create new substances, and physical properties are characteristics that can be observed without changing the substance chemically.
2. The ability to be crushed is a physical property related to the state - change under pressure. Chemical properties involve reactions that change the substance's identity, like burning, toxicity, and reacting with oxygen.
3. Density is a physical property that measures mass per unit volume. Flammability and combustibility are chemical properties related to burning, and oxidation is a chemical reaction.
4. Density is defined as mass divided by volume, so it depends on both mass and volume.
5. Sugar is soluble in water, which is a physical property that allows for separation from sand (which is insoluble). Ductility and malleability are properties related to the ability to be shaped.
6. Reacting with oxygen is a chemical property as it involves a chemical reaction. Being attracted by a magnet, boiling point, and solubility are physical properties.
7. Flammability is a chemical property as it involves a substance reacting with oxygen in a combustion reaction. Density, melting point, and solubility are physical properties.

Answer:

1. c) chemical property
2. b) ability to be crushed
3. b) density
4. d) mass and volume
5. a) soluble in water
6. b) ability to react with oxygen
7. c) flammability