matter, subtances, and mixtures

Question 1

what is matter

Answer 1

a representation of all substances that have mass and volume

Question 2

what is a substance

Answer 2

matter that has the same properties and composition

Question 3

what is a substance made of

Answer 3

tiny particles called atoms

Question 4

what are the two types of substances

Answer 4

elements and compounds

Question 5

what are elements composed of

Answer 5

same kind of atoms

Question 6

what are elements considered to be

Answer 6

metals and non metals

Question 7

where are metals on the periodic table

Answer 7

left

Question 8

where are non metals on the periodic table

Answer 8

right

Question 9

what are compounds made of

Answer 9

two or more atoms that are chemically combined

Question 10

what are compounds considered to be

Answer 10

molecules or salts

Question 11

what are molecules made of

Answer 11

all non metal atoms

Question 12

what are salts made of

Answer 12

metals and non metal atoms

Question 13

what represents a compound

Answer 13

a chemical formula

Question 14

where are chemical symbols used

Answer 14

in place of an element name

Question 15

how many letters are in a chemical symbol

Answer 15

one, two, or three

Question 16

what is a mixture

Answer 16

matter that contains more than one kind of matter with no chemical reaction

Question 17

what are the two types of mixtures

Answer 17

heterogeneous and homogeneous

Question 18

what is a heterogeneous mixture

Answer 18

a mixture where the particles are not uniform throughout and can be easily separated

Question 19

what is a homogeneous mixture

Answer 19

a mixture where the particles are uniform throughout and cannot be easily separated

Question 20

a solution is a homogeneous mixture

Answer 20

true

Question 21

what are the two types of changes matter can undergo

Answer 21

physical and chemical

Question 22

what is a physical change

Answer 22

the same substances are present before and after change occurs and its only a change of state

Question 23

what does malleble mean

Answer 23

pounding

Question 24

what does ductile mean

Answer 24

pulling

Question 25

what is a chemical change

Answer 25

new substances are present after change occurs and involves a chemical reaction

Question 26

what is the rule for chemical changes

Answer 26

solid, color change, or energy change forms and a chemical reaction has occurred

Question 27

what is an energy change

Answer 27

electricity production, light, fire, or temperature change

Question 28

what is physical property

Answer 28

description of a substance

Question 29

what is an extensive property

Answer 29

physical properties that depend directly on the amount of matter present (length and mass)

Question 30

what is an intensive property

Answer 30

physical property that does not depend directly on the amount of matter present (density and mass)

Question 31

what is a chemical property

Answer 31

description of how or if a substance will undergo a chemical reaction

Question 32

watch words for physical changes

Answer 32

soluble, crystalize, dissolving, melting, freezing, boiling, vaporize, condense, and evaporate