Chapter 1 - Matter

Question 1

study of matter and the manipulation of materials

Answer 1

chemistry

Question 2

systematic approach to the study of chemistry and other sciences and based on observations of natural laws and experimental data and used by galileo and robert boyle

Answer 2

scientific method

Question 3

anything that occupies space and has mass

Answer 3

matter

Question 4

qualities or attributes that distinguish one type of matter from another

Answer 4

properties

Question 5

properties that don’t change with the composition of matter

Answer 5

physical

Question 6

any change in a physical property and doesn’t change the composition

Answer 6

physical change

Question 7

ability to be made into wire

Answer 7

ductility

Question 8

ability to be molded into different shapes

Answer 8

malleability

Question 9

properties that are the ability of materials to undergo a change in composition

Answer 9

chemical properties

Question 10

one or more kinds of matter change into a new type of matter

Answer 10

chemical change

Question 11

all matter is made up of blank

Answer 11

atoms

Question 12

each type of atom is the building block of a blank

Answer 12

element

Question 13

how many elements

Answer 13

112

Question 14

how many natural elements

Answer 14

90

Question 15

separating liquid from solid

Answer 15

filtration

Question 16

separation of liquids by boiling and condensing

Answer 16

distillation

Question 17

compounds can be separated or decomposed into their elements by blank changes

Answer 17

chemical

Question 18

three states of matter

Answer 18

solid, liquid, gas

Question 19

atoms or molecules are closely packed together

Answer 19

solid

Question 20

atoms are farther apart, can be poured, and take on containers shape

Answer 20

liquid

Question 21

atoms are very far apart, mostly empty space and expand to fill container

Answer 21

gas

Question 22

chemistry is a blank science

Answer 22

quantitative

Question 23

units used in chemistry

Answer 23

si units

Question 24

three types of values

Answer 24

estimates, exact numbers, and measured quantities

Question 25

errors due to the instrument used to make a measurement

Answer 25

systematic error

Question 26

error due to experimenter’s skill or technique

Answer 26

random errors

Question 27

how close a measurement is to the actual value

Answer 27

accuracy

Question 28

how close measurements are to each other

Answer 28

precision

Question 29

when measuring in chemistry one should measure to blank estimated digits

Answer 29

one

Question 30

collection of compounds or molecules

Answer 30

mixtures

Question 31

two types of mixtures

Answer 31

homogenous, heterogenous

Question 32

mixture uniform throughout

Answer 32

homogenous

Question 33

sugar dissolved in water is a blank mixture

Answer 33

homogenous

Question 34

composition is not uniform in this mixture

Answer 34

heterogenous

Question 35

sand in water is a blank mixture

Answer 35

heterogenous

Question 36

who got most of the credit for the periodic table of elements

Answer 36

mendeleev

Question 37

substances made of one or more elements’ atoms

Answer 37

compounds

Question 38

h2o is a blank

Answer 38

compound

Question 39

smallest unit of a compound

Answer 39

molecule

Question 40

all nonzero digits are blank figures

Answer 40

significant

Question 41

how many sig figs in 0.1?

Answer 41

1

Question 42

how many sig figs in 400?

Answer 42

1

Question 43

how many sig figs in .002

Answer 43

1

Question 44

how many sig figs in 1.23

Answer 44

3

Question 45

how many sig figs in 1.20

Answer 45

3

Question 46

how many sig figs in 0.0103

Answer 46

3

Question 47

1241

Answer 47

4