Chemistry Fill in the Blanks Part 1

Question 1

A pure substance containing only one of atom

Answer 1

Element

Question 2

An element is always uniform all the way through is

Answer 2

Homogeneous

Question 3

An __________ cannot be separated into simpler materials (except during nuclear reactions)

Answer 3

Element

Question 4

Over 100 existing elements are listed and classified on the

Answer 4

Periodic Table

Question 5

A pure substance containing two or more kinds of atoms

Answer 5

Compounds

Question 6

Atoms in a compound are _________ combined in some way.

Answer 6

chemically

Question 7

Compounds come together to form groups of atoms called

Answer 7

Molecules

Question 8

A compound is always

Answer 8

Homogeneous (uniform)

Question 9

_________cannot be separated by physical means.

Answer 9

Compounds

Question 10

Separating a compound requires a

Answer 10

chemical reaction

Question 11

The ________ of a compound are usually _________ than the properties of the elements it contains.

Answer 11

properties; different

Question 12

Two or more elements or compounds NOT chemically combined.

Answer 12

Mixture