C2.1.5 Pure and impure substances

C1.2.5 Pure and impure substances

15th/01

Miss Szarszo

Multiple Choice

CALCULATE THE RELATIVE ATOMIC MASSOF THE FOLLOWING MOLECULES:

FeCl2

• 127

• 162.5

• 120

• 84

• 40

Multiple Choice

CALCULATE THE RELATIVE ATOMIC MASSOF THE FOLLOWING MOLECULES:

MgO

• 127

• 162.5

• 120

• 84

• 40

Multiple Choice

CALCULATE THE RELATIVE ATOMIC MASSOF THE FOLLOWING MOLECULES:

FeCl3

• 127

• 162.5

• 120

• 84

• 40

Multiple Choice

CALCULATE THE RELATIVE ATOMIC MASSOF THE FOLLOWING MOLECULES:

MgCO3

• 127

• 162.5

• 120

• 84

• 40

Multiple Choice

CALCULATE THE RELATIVE ATOMIC MASSOF THE FOLLOWING MOLECULES:

MgSO4

• 127

• 162.5

• 120

• 84

• 40

Poll

Diagram 1

• Pure

• Impure

Poll

Diagram 2

• Pure

• Impure

Poll

Diagram 3

• Pure

• Impure

Poll

Diagram 4

• Pure

• Impure

Open Ended

What is an alloy?

Fill in the Blanks

Fill in the Blanks

Fill in the Blanks

Fill in the Blanks

Fill in the Blanks

Fill in the Blanks

Open Ended

melting point of pure gold is 1064.18 celsius degree, but a sample from a gold ring melts at 915 to 963 celsius degree. Explain why the ring cannot be made from pure gold, and suggest why the melting point for pure gold is given to two decimal places.

Poll

Did you enjoy the class as a game?

• Yes it was fun, lets do it again

• No, I didn't like it and I prefer normal power points