Yr 10 - RP potable water

Only pure water is safe to drink.

• True

• False

Potable water contains dissolved mineral ions

• True

• False

What is the pH of pure water?

• 3

• 7

• 9

• 12

Sea water contains high levels of.....

• Sodium bromide

• Magnesium chloride

• Magnesium Bromide

• Sodium Chloride

Desalination is when salt is removed from seawater

• True

• False

Which of the following cannot be used to measure pH

• Litmus paper

• pH meter

• Universal indicator paper

• Universal indicator solution

How many decimal places should we record the mass of evaporating dish to?

• 0

• 1

• 2

• 3

When the liquid evaporates, what is the state change

• solid to liquid

• liquid to gas

• gas to liquid

• gas to solid