Elements, Compounds and Mixtures

Question 1

Define element:

Answer 1

A substance that contains only one type of atom

Question 2

Define compound:

Answer 2

Two or more different atoms chemically combined

Question 3

Define mixture:

Answer 3

Two or more elements or compounds not chemically combined

Question 4

Define pure substance:

Answer 4

A substance that contained just a single element or compound

Question 5

What does the addition of other chemicals to a pure substance do:

Answer 5

Alters the melting/boiling point