Other questions in this quiz

2. harm water forms what?

  • limescale
  • dirt
  • slime
  • gunge

3. chlorination does what ?

  • kills bacteria
  • chlorifies the water
  • purifies the water

4. when sodium is burnt it produces a ________ flame.

  • red
  • yellow-orange
  • orange
  • yellow

5. soft water takes a ______ amount of soap to create a ______.

  • small, lather
  • large, froth
  • small, froth
  • large, lather

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