Periodic Table Grade 8 and 9

Question 1

What is a difference between compounds and mixtures?

Accepted Answer

Mixtures can be easily separated using physical means.

Question 2

Evaporation is a change of state from ______ to ______.

Accepted Answer

Liquid, Gas

Question 3

Matter can change from one state to another

Accepted Answer

True

Question 4

Elements and compounds are...

Accepted Answer

Pure substances

Question 5

The elements that do not ordinarily form compounds are ______.

Accepted Answer

noble gases

Question 6

The Periodic Table can have compounds on it

Accepted Answer

False

Question 7

The change of state from a liquid to a solid.

Accepted Answer

Freezing

Question 8

vaporization:The change of state from a liquid to a gas.

Accepted Answer

True

Question 9

The study of elements, compounds and atoms

Accepted Answer

Chemistry

Question 10

Name the state of matter!

Accepted Answer

Gas

Question 11

Elements to the right of the stair-step line are -

Accepted Answer

non-metals

Question 12

Name the state of matter!

Accepted Answer

Liquid

Question 13

How many elements are there?

Accepted Answer

118

Question 14

An orderly arrangement of all known elements.

Accepted Answer

Periodic table

Question 15

Name the state of matter!

Accepted Answer

Solid

Question 16

Elements in group 18 are what type of elements ?

Accepted Answer

Noble gases

Question 17

What do elements, compounds and mixtures have in common?

Accepted Answer

atoms

Question 18

Elements are made up of Atoms

Accepted Answer

True

Question 19

When looking at a chemical symbol, how can you tell elements apart from compounds?

Accepted Answer

Elements have only one capital letter

Questions 19