Chapter 1

Question 1

What is matter?

Answer 1

How atoms are arranged

Question 2

Chemistry is considered the?

Answer 2

Central Science

Question 3

What does chemistry discover?

Answer 3

New types of matter

Question 4

What does Chemistry measure?

Answer 4

Properties of matter

Question 5

What are ways we explain or predict the properties of matter?

Answer 5

Through the development of models

Question 6

What are the three forms of matter?

Answer 6

Liquid, Solid, and Gas

Question 7

What are two compositions of matter?

Answer 7

Pure Substance and Mixture

Question 8

What is a Pure Substance composed of?

Answer 8

Element or a Compound

Question 9

What are the two types of Mixtures?

Answer 9

Homogenous or Heterogenous

Question 10

How many elements is a Heterogenous mixture made of?

Answer 10

2 or more, can tell them apart

Question 11

How many elements is a Homogenous mixture made of?

Answer 11

2 or more, but can’t tell them apart

Question 12

What happens during a Chemical Change?

Answer 12

Different substances are made

Question 13

What occurs during a Physical change? (4)

Answer 13

Density, color, melting or boiling point etc.

Question 14

What occurs during a Chemical Change?

Answer 14

How a substance reacts or changes to other substances.

Question 15

What is an Intensive Property?

Answer 15

Independent of the amount of matter, such as temperature or density.

Question 16

What is an Extensive Property?

Answer 16

Dependent on the amount of the matter, such as mass

Question 17

What is the symbol for Work?

Answer 17

w

Question 18

What is the equation for Work?

Answer 18

w= F x d

Question 19

What does the F and d stand for in the Work equation w= F x d?

Answer 19

Force and Displacement

Question 20

What is the symbol for Heat?

Answer 20

q

Question 21

What are the 2 forms of energy?

Answer 21

Kinetic and Potential Energy

Question 22

How can Kinetic energy be described?

Answer 22

The movement of an Object and the energy it possesses

Question 23

How can Potential Energy be described?

Answer 23

Stored Energy an Object possesses due to its Position or Arrangement

Question 24

What type of Energy is gained when molecules are heated?

Answer 24

Kinetic Energy

Question 25

Where is Potential Energy stored in Atoms?

Answer 25

In the Arrangement of the Atoms

Question 26

What type of Energy is released when the bonds between atoms are formed?

Answer 26

Chemical Energy

Question 27

When bonds of an Atom are broken, what type of energy is consumed?

Answer 27

Chemical Energy

Question 28

When a fuel is burning, the Chemical Energy becomes what type of Energy

Answer 28

Thermal Energy

Question 29

How is Scientific Knowledge gained?

Answer 29

The the observations of the Natural World

Question 30

Can a Theory be Absolutely True?

Answer 30

False

Question 31

When something also happens over and over again without fail it becomes a?

Answer 31

Law

Question 32

A Law is a?

Answer 32

Statement of something that always happens

Question 33

A Theory is an?

Answer 33

Explanation of what happens

Question 34

Exact Numbers have ________ values

Answer 34

Defined Values 1 dozen = 12 1 inch = 2.54

Question 35

Inexact numbers have?

Answer 35

Uncertainties

Question 36

What are causes of Inexact numbers? (2)

Answer 36

Equipment Errors or Human Errors

Question 37

Precision is defines as?

Answer 37

How closely the individual measurements are together or agree with one another

Question 38

Accuracy can be defined as?

Answer 38

How closely individual measurements agree with the true value

Question 39

What number is considered uncertain when measuring quantities?

Answer 39

The Last Digit

Question 40

Which measurement is more accurate? 40.0 ml or 40 ml?

Answer 40

40 ml

Question 41

Do the Leading Zero's count, when counting sig figs? (0.01050)

Answer 41

No

Question 42

Do sandwiched zeros (between, non-zero digits) count, when counting sig figs?

Answer 42

Yes

Question 43

Do trailing zeros count if the number has a decimal point?

Answer 43

Yes

Question 44

How many sig figs are in 7500?

Answer 44

2

Question 45

How many Sig Figs are in 75.00?

Answer 45

4

Question 46

How do you decided on the amount of sig figs in your final answer?

Answer 46

By using the measurement with the least number of sig figs

Question 47

If a number is 5 or larger do you round up or down?

Answer 47

Up