Density and Characteristic Properties

Question 1

What types of properties would be properties of objects?

Answer 1

Properties about size, shape, or amount.

Question 2

What types of properties would be properties of substances?

Answer 2

Properties that different samples of the substance would have.

Question 3

Would luster be a property of an object or substance?

Answer 3

substance

Question 4

Would color be a property of an object or substance?

Answer 4

substance

Question 5

Would spherical be a property of an object or substance?

Answer 5

object

Question 6

Would pointed be a property of an object or substance?

Answer 6

object

Question 7

Would smelly be a property of an object or substance

Answer 7

substance

Question 8

Would heavy be a property of an object or substance?

Answer 8

object

Question 9

How do you determine that a property is a physical property?

Answer 9

You can observe the property without changing its chemical identity.

Question 10

How do you determine that a property is a chemical property?

Answer 10

The property describes how the substance acts in the presence of other substances.

Question 11

Is state of matter a chemical or physical property?

Answer 11

Physical

Question 12

A substance is inert. Is that a chemical or physical property?

Answer 12

chemical

Question 13

A substance is corrosive. Is that a chemical or physical property?

Answer 13

chemical

Question 14

A substance is shiney. Is that a chemical or physical property?

Answer 14

physical

Question 15

A substance is smooth. Is that a chemical or physical property?

Answer 15

physical

Question 16

A substance is flammable. Is that a chemical or physical property?

Answer 16

chemical

Question 17

How do you know that a chemical change occurred?

Answer 17

A new substance with new properties forms.

Question 18

How do you know that a physical change occurred?

Answer 18

The substance keeps its chemical identity.

Question 19

Is butter melting a chemical or physical change?

Answer 19

physical

Question 20

Is mixing iron and oxygen to form rust a chemical or physical change?

Answer 20

chemical

Question 21

Is fruit rotting a chemical or physical change

Answer 21

chemical

Question 22

Is carving a piece of wood a chemical or physical change?

Answer 22

physical

Question 23

Is a burning match a chemical or physical change?

Answer 23

chemical

Question 24

Is liquid wax hardening a chemical or physical change?

Answer 24

physical

Question 25

What is a characteristic property?

Answer 25

A chemical or physical property that helps to identify a substance.

Question 26

What three things are true about characteristic properties?

Answer 26

1. Property does not depend on amount. 2. All samples of the substance have the property. 3. The property is different for similar substances.

Question 27

Is the weight of an object a characteristic property?

Answer 27

No. Weight depends on the amount of the substance.

Question 28

Is the color of the substance a characteristic property?

Answer 28

No. Different substances can have the same color. The same substance can have different colors.

Question 29

Is boiling point of a substance a characteristic property?

Answer 29

Yes. All samples of the substance would have that boiling point.

Question 30

Is the shape of an object a characteristic property?

Answer 30

No. Objects made from different substances can have the same shape.

Question 31

What is density?

Answer 31

Density is the ratio of mass to volume of an object.

Question 32

Two objects have the same mass. Are they made from the same substance?

Answer 32

No. Mass is not a characteristic property.

Question 33

Two objects have the same volume. Are they made from the same substance?

Answer 33

No. Volume is not a characteristic property

Question 34

Two objects have the same shape. Are they made from the same substance?

Answer 34

No. Shape is not a characteristic property

Question 35

A sphere has a density of 4.2 g/mL and a cube has a density of 4.2 g/mL. Are they made from the same substance?

Answer 35

Yes. Density is a characteristic property. The shape does not matter.

Question 36

A cube has a density of 4.2 g/mL. Another cube has a density of 5.3 g/mL. Are they made from the same substance?

Answer 36

No. They don't have the same density, and density is a characteristic property.

Question 37

What are possible units for mass?

Answer 37

grams or kilograms

Question 38

What are possible units for volume?

Answer 38

liters, milliliters, cubic centimeters

Question 39

g/mL or kg/L are units for which variable?

Answer 39

density

Question 40

What instrument is used to measure volume of a regular solid?

Answer 40

metric ruler

Question 41

What instrument is used to measure the mass of a solid?

Answer 41

balance

Question 42

What instrument is used to measure the volume of a liquid or an irregular-shaped solid?

Answer 42

a graduated cylinder

Question 43

What is a precipitate?

Answer 43

A solid that falls out of solution

Question 44

Which of the following is not an indicator of a chemical change: gas forms, precipitate forms, shape changes

Answer 44

Shape changes

Question 45

Which of the following is not an indicator of a chemical change: odor released, energy released, state of matter changes

Answer 45

State of matter changes