Mixtures And Compounds

Question 1

Substance

Answer 1

Matter with the same composition and properties through heat

Question 2

When elements combine what do they form

Answer 2

Substances

Question 3

Compounds

Answer 3

Substance whose smallest unit is made of atoms of more than one bonded element

Question 4

T or f
Compounds usually have different properties than the elements that make them up

Answer 4

True

Question 5

What is the subscript number

Answer 5

How many atoms of the element are in one unit of the compound

Question 6

Mixture

Answer 6

2+ substances combined not forming a new substance

Question 7

Can proportions can chance w out changing identity in mixtures

Answer 7

Yes

Question 8

Ways to separate mixtures (4)

Answer 8

Individually separating
Heat
Water
Sifting

Question 9

Homogenous

Answer 9

The same throughout

Question 10

Heterogenous

Answer 10

Not the same throughout

Question 11

Matter is made of what

Answer 11

Atoms

Question 12

Atoms are made of what

Answer 12

Protons neutrons and electrons

Question 13

If atoms combine what is a possible thing they can make

Answer 13

Element

Question 14

Compound when different atoms join in chemical reaction t or f

Answer 14

True

Question 15

Do properties stay same when forming substances

Answer 15

No

Question 16

Can elements be broken down if so into what

Answer 16

Yes
Atoms

Question 17

Can compounds be broken down if so into what

Answer 17

Yes
Molecules

Question 18

Molecule

Answer 18

Atom joined in chemical reaction

Question 19

True or false
Elements combine with chem. reaction and the properties do NOT change

Answer 19

False

Question 20

Do substances change their identities in mixtures

Answer 20

No

Question 21

Are mixtures easy to separate and make

Answer 21

Yes

Question 22

Subscript

Answer 22

How many atoms of an element are in each unit

Question 23

What is written if there is one atom in each unit

Answer 23

Nothing

Question 24

Element

Answer 24

Pure substance made of any one type of atom

Question 25

Is cooking a compound or a mixture

Answer 25

Compound

Question 26

Solution

Answer 26

Mixture of one substance dissolved in another

Question 27

Solvent

Answer 27

Substance that dissolves other substance

Question 28

Solute

Answer 28

Substance being dissolved

Question 29

Suspension

Answer 29

Mixture of solute particles suspended

Question 30

Colloids

Answer 30

A mixture of solute particles permanently suspended

Question 31

Physical properties

Answer 31

Characteristics identified without changing substance

Question 32

Chemical properties

Answer 32

Characteristics need to be changed to be identified

Question 33

Physical change

Answer 33

Changes to appearance, expected

Question 34

Chemical change

Answer 34

Changes identity, irreversible

Question 35

5 ways to identify chemical change

Answer 35

Color Precipitate formation Temp Gas production Odor

Question 36

Is changing shape physical or chemical

Answer 36

Physical

Question 37

Dissolving

Answer 37

The particles spread out but composition stays

Question 38

Is dissolving physical or chemical

Answer 38

Physical

Question 39

Which does composition change, physical chemical

Answer 39

Chemical