Chapter 1 Review

Question 1

Any substance that has a definite composition

Answer 1

chemical

Question 2

process that changes one set of chemicals into another set of chemicals

Answer 2

chemical reaction

Question 3

A form of matter that has a definite shape and volume

Answer 3

solid

Question 4

A state of matter that has no definite shape but has a definite volume.

Answer 4

liquid

Question 5

anything that takes up space and has mass

Answer 5

matter

Question 6

liquid portion of blood

Answer 6

plasma

Question 7

a substance or molecule that participates in a chemical reaction

Answer 7

reactant

Question 8

A substance produced in a chemical reaction

Answer 8

product

Question 9

The amount of space an object takes up

Answer 9

volume

Question 10

the force of gravity on an object

Answer 10

weight

Question 11

amount

Answer 11

quantity

Question 12

A change in a substance that does not change its identity

Answer 12

physical change

Question 13

a substance made by mixing other substances together.

Answer 13

mixture

Question 14

has uniform structure or composition throughout

Answer 14

homogeneous

Question 15

different phases of distinctly different regions

Answer 15

heterogeneous

Question 16

Milk souring is a ______ change.

Answer 16

chemical

Question 17

gasoline burning

Answer 17

chemical

Question 18

ice melting

Answer 18

physical

Question 19

lighting a match

Answer 19

chemical

Question 20

water evaporating

Answer 20

physical

Question 21

chopping wood

Answer 21

physical

Question 22

breath fogging a mirror

Answer 22

physical

Question 23

cooking an egg

Answer 23

chemical

Question 24

bleaching a stain

Answer 24

chemical

Question 25

describe two characteristics properties of matter

Answer 25

matter has mass and volume

Question 26

explain the difference between quantity and unit

Answer 26

quantity is the property that is measured; a unit is the quantity the property is measured in

Question 27

Why is density a derived unit?

Answer 27

It is calculated by combining two SI units.

Question 28

The terms odorless and colorless are quantitative terms.

Answer 28

False

Question 29

to say that the mass of a gold nugget is 5.0 grams is to use a quantitative term

Answer 29

true

Question 30

what are the differences between physical and chemical properties? give an example of a chemical property.

Answer 30

physical properties can be determined without changing the identity of a substance. chemical properties describe a substance's ability to participate in chemical reactions. Ex: rotting, reaction with oxygen/rusting

Question 31

a ratio of equivalent measurements

Answer 31

conversion factor

Question 32

explain how chemicals and chemical reactions are an important part of your life.

Answer 32

chemicals and chemical reactions take place around you everyday. by learning about them, you can start learning more about the world around you.

Question 33

explain the difference between mass and weight.

Answer 33

mass is the quantity of matter in an object and weight is the force produced by gravity acting on a mass.

Question 34

What special meaning does the slope of a graph of mass versus volume have?

Answer 34

The slope of a graph of mass versus volume is equal to density

Question 35

density

Answer 35

mass/ volume

Question 36

A change in matter that produces one or more new substances

Answer 36

chemical change

Question 37

the basic unit of a chemical element.

Answer 37

atom

Question 38

Matter that always has exactly the same composition

Answer 38

pure substance

Question 39

A pure substance made of only one kind of atom

Answer 39

element

Question 40

A group of atoms bonded together

Answer 40

molecule

Question 41

What is the SI base unit for mass?

Answer 41

gram

Question 42

What is the SI base unit for length?

Answer 42

meter

Question 43

What is density?

Answer 43

ratio for how many particles a substance has in a certain amount of space

Question 44

The Law of Conservation of Mass states:

Answer 44

Matter cannot be created and it cannot be destroyed

Question 45

fireworks are a physical change

Answer 45

false

Question 46

What is the chemical property?

Answer 46

reacts with air

Question 47

What is percent error?

Answer 47

the perfect value of the error divided by the accepted value

Question 48

All matter has:

Answer 48

density, volume, mass

Question 49

What is an allotrope?

Answer 49

When an element can have two or more forms

Question 50

What is an example of a compound

Answer 50

Pure water (H2O)

Question 51

Concrete is a homogeneous structure

Answer 51

False

Question 52

Heterogeneous mixture can be separated

Answer 52

True