Tests for Cations
Tests for Anions
Hard Water
Water Quality
100
The flame test.
What is a chemical test to identify metal ions?
100
You bubble the mystery gas through lime water. If the limewater turns milky it is one.
What is a test for Carbonates/C02?
100
Calcium and MAgnesium.
What is hard water caused by?
100
Ozone or Chlorine.
What is water treated with to kill microorganisms?
200
Add a few drops of sodium hydroxide solution to your mystery solution. A blue precicitate will be formed.
What is an ion test to find copper?
200
You add dilute hyrochloric acid and barium chloride solution. If a white precipitatance forms then it means that the original substance had them.
What is a test for Sulfate ions?
200
Strong bones and teeth.
What is an advantage of having hard water?
200
It's filtered through gravel beds to remove all solids.
What is the 4th stage of water treatment? What does it do?
300
Smells of cat wee.
What smell is made when sodium hydrodide reacts with ammonia?
300
By adding sodium carbonate. By ion exchange columns.
How can you remove the hardness?
300
Chemistry labs.
Where is distilled water used?
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