More cards in this set

Card 6

Front

State the symbols and ionic charge

Back

Preview of the front of card 6

Card 7

Front

How is scale produced?

Back

Preview of the front of card 7

Card 8

Front

What is bad about scale?

Back

Preview of the front of card 8

Card 9

Front

How is calcium good for us?

Back

Preview of the front of card 9

Card 10

Front

What is the difference between scum and scale?

Back

Preview of the front of card 10

Card 11

Front

Why is it better to drink hard water rather than soft?

Back

Preview of the front of card 11