Chapter 2 Chemical Changes

Question 1

What colour does sodium change a flame

Answer 1

Orange

Question 2

Ice melting is irreversible true or false

Answer 2

False

Question 3

Calcium changes a flame

Answer 3

Brick red

Question 4

What is this part of a Bunsen called that changes the type of flame

Answer 4

Air hole

Question 5

Strontium makes a flame

Answer 5

Red

Question 6

Barium makes a flame

Answer 6

Yellow/green

Question 7

The flame changes lilac when ??? Gets involved

Answer 7

Potassium

Question 8

What colour does copper change a flame

Answer 8

Green

Question 9

What is the substance that creates a bright white light

Answer 9

Magnesium

Question 10

Which one is soluble sand or sugar

Answer 10

Sugar

Question 11

What is the process called when a substance changes from a liquid to a solid

Answer 11

Freezing

Question 12

Condensing is the process when a ??? Changes to a ???

Answer 12

Gas , Liquid

Question 14

Making a clay pot is reversible true or false

Answer 14

True

Question 15

Definition of solvent

Answer 15

The liquid that dissolves a solid

Question 16

Which one is irreversible. Candle wax or wick

Answer 16

Wick

Question 17

How do you separate insoluble from water

Answer 17

Filtration

Question 18

What equipment do you need to do filtration

Answer 18

Beaker, filter paper, filter funnel and conical flask

Question 19

What is at the bottom of a fire triangle

Answer 19

Fuel