Pure substance and the PT

Question 1

chemistry

Answer 1

the science that studies matter and its properties

Question 2

2 categories that classify matter

Answer 2

1. pure substance
2. mixtures

Question 3

a pure substance has a

Answer 3

uniform composition

Question 4

pure substance is either

Answer 4

an element or compound

Question 5

element

Answer 5

only contain 1 type of atom

Question 6

elements cant be

Answer 6

broken into anything simpler

Question 7

elements solid at room temp

Answer 7

1. C
2. Al
3. Na

Question 8

neon and argon exist

Answer 8

as single atoms at room temp

Question 9

diatomic molecule

Answer 9

consist of pairs of joined atoms

Question 10

examples of DM

Answer 10

1. H
2. N
3. O

Question 11

compound

Answer 11

contain particles that are made up of more than one type of atom and are chemically joined

Question 12

properties of compounds differ

Answer 12

from the individual elements its made up of

Question 13

elements in a compound are always

Answer 13

combined in a fixed ratio

Question 14

mixture

Answer 14

consist of diff substances

Question 15

mixtures are

Answer 15

two or more pure substances that can be mixed together in any ratio

Question 16

solvent

Answer 16

the liquid into which a solid dissolves

Question 17

solute

Answer 17

a solid which dissolves in a liquid

Question 18

solution

Answer 18

results when a solid dissolves in a liquid

Question 19

soluble substance

Answer 19

a solid which dissolves in water

Question 20

homogeneous mixture

Answer 20

exist in only one phase and you cant usually distinguish the diff components of this mixture

Question 21

heterogeneous mixture

Answer 21

you can clearly see the diff components

Question 22

suspension

Answer 22

a heterogeneous mixture containing solid particles and they eventually sink to the bottom