Definitions

Question 1

Define matter

Answer 1

Anything with mass and volume

Question 2

Define atom

Answer 2

Smallest particle of an element

Question 3

Define ion

Answer 3

Atom or group of atoms that has gained or lost electrons to form a positive or negative charge

Question 4

Define molecule

Answer 4

Neutral group of atoms connected by covalent bonds

Question 5

3 things that distinguish a pure substance

Answer 5

1. ) Only 1 type of compound
2. ) Cannot be separated physically
3. ) Unique set of chemical and physical properties

Question 6

3 things that distinguish a mixture

Answer 6

1. ) More than 1 type of compound present
2. ) can be separated physically
3. ) chemical + physical properties change based on proportions of components

Question 7

Describe what a MECHANICAL MIXTURE is

Answer 7

• Heterogeneous mixture
• More than one phase present
• Separate using mechanical separation

Question 8

Can elements be separated

Answer 8

No

Question 9

Can a compound be separated

Answer 9

Yes by electrolysis

Question 10

How do you determine homogeneous

Answer 10

Means is the same throughout

(no visible difference)

Question 11

How do you determine heterogeneous

Answer 11

Heterogeneous is different in composition (visible difference)

Question 12

Does Ionic compounds conduct electricity and what state is it in room temp

Answer 12

Usually solid and conducts electricity

Question 13

Does molecular compounds conduct electricity and what state is it in room temp

Answer 13

Gases or liquids usually and doesn’t conduct electricity

Question 14

Component elements of ionic compounds

Answer 14

Metal vs non-metal

Question 15

Component element of molecular compounds

Answer 15

Non-metal vs non-metal