Advertisements
Advertisements
प्रश्न
Give a balanced equation for the following conversion:
Calcium sulphate in permanent hard water to calcium carbonate using sodium carbonate.
Advertisements
उत्तर
\[\ce{\underset{\text{Sodium carbonate}}{Na2CO3} + \underset{\text{In hard water}}{CaSO4} -> \underset{\text{Cal. carbonate}}{CaCO3↓} + \underset{\text{Sodium sulphate}}{Na2SO4}}\]
APPEARS IN
संबंधित प्रश्न
Name the gas produced when steam is passed over hot coke.
Answer the following question:
Name two gases dissolved in natural water.
What do you mean by water pollution ?
State what is potable water. Give its qualities or characteristics which make it fit for human consumption.
Name the solute, solvent & solution in the statement – ‘sodium chloride dissolves in water to give sodium chloride solution’. Define each of the terms in italics.
Define ‘eutrophication’.
If, at some place, it did not rain for a very long period of time, what would be its effect on the life of the people there?
Look at the map of Tamilnadu showing annual rainfall and answer the questions given below
- Identify the districts that get only low annual rainfall in Tamilnadu.
- Identify the districts that get a medium annual rainfall in Tamilnadu.
- State the districts that enjoy high annual rainfall in Tamilnadu.
Why should we not throw cooking oil and fats down the drain?
Look at the figure.
Write down activities shown in this figure in which water is being used.
