4 marksNon-Metals
CSEC Chemistry · January 2017 · Paper 2 · Question 6(a)
State TWO properties of water and explain how EACH property assists in sustaining life on Earth.
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- 6(b)(i)Write a balanced equation showing how hard water, formed as stated above, can be softened using sodium carbonate.[2 marks]
- 6(b)(ii)Name and describe ONE other method by which water can be softened.[4 marks]
- 6(c)Describe a method which can be used to distinguish between hard water and soft water using soap.[5 marks]
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