9 Classification of Matter

Question 1

sample of matter with both definite and constant composition and distinct properties

Answer 1

pure substances

Question 2

composed of a single type of atom

Answer 2

elements

Question 3

cannot be broken down into simpler substances by ordinary chemical means

Answer 3

elements

Question 4

composed of different types of atoms bonded together

Answer 4

compounds

Question 5

can be decomposed by chemical means into simpler substances

Answer 5

compounds

Question 6

composed of identical atoms

Answer 6

elements

Question 7

each one has a unique atomic symbol

Answer 7

elements

Question 8

i.e., copper wire and gold bar

Answer 8

elements

Question 9

composed of two or more elements in a fixed ratio

Answer 9

compounds

Question 10

properties differ from those of individual elements

Answer 10

compounds

Question 11

represented by a chemical formula

Answer 11

compounds

Question 12

i.e., table salt (NaCl)

Answer 12

compounds

Question 13

states that the ratio of the masses of each element in a given compound is always the same

Answer 13

law of definite composition

Question 14

states that elements can combine in different ratios form different compounds

Answer 14

law of multiple proportions

Question 15

can be two of the same element

Answer 15

diatomic elements

Question 16

groups of two or more types of non-metal atoms linked by covalent bonding to form distinct substance

Answer 16

molecular compounds

Question 17

H2, O2, F2, Cl2, Br2, I2

Answer 17

7 diatomic elements

Question 18

substance consisting of two or more pure substances that are physically mixed BUT not chemically combined

Answer 18

mixtures

Question 19

composed of the same kind of matter throughout a sample (single phase)

Answer 19

homogeneous mixtures

Question 20

the entire phase of a sample has the same (uniform) composition and properties

Answer 20

homogeneous mixtures

Question 21

composed of different kind of matter, incompletely mixed (multiple phase)

Answer 21

heterogeneous mixture

Question 22

each phase of a sample have different composition and properties

Answer 22

heterogeneous mixture

Question 23

homogeneous mixture

Answer 23

solution

Question 24

very small particles

Answer 24

solution

Question 25

no tyndall effect

Answer 25

solution

Question 26

particles don’t settle

Answer 26

solution

Question 27

i.e., rubbing alcohol

Answer 27

solution

Question 28

heterogeneous mixture

Answer 28

suspension

Question 29

has insoluble, large particles

Answer 29

suspension

Question 30

has Tyndall effect (for a while)

Answer 30

suspension

Question 31

particles settle after some time

Answer 31

suspension

Question 32

i.e., fresh-squeezed lemonade

Answer 32

suspension

Question 33

heterogeneous mixture, but doesn’t look like one

Answer 33

colloid

Question 34

medium-sized particles

Answer 34

colloid

Question 35

has Tyndall effect all throughout

Answer 35

colloid

Question 36

particles don’t settle

Answer 36

colloid

Question 37

i.e., milk

Answer 37

colloid

Question 38

only 1 visibly distinct phase

Answer 38

homogeneous mixture

Question 39

phase has same properties throughout

Answer 39

homogeneous mixture

Question 40

2 or more visibly distinct phases

Answer 40

heterogeneous mixture

Question 41

each phase has different properties

Answer 41

heterogeneous mixture