HARD
Lower Secondary Stage 9
IMPORTANT
Earn 100
Mo wants to make the salt called sodium nitrate. He could react sodium metal or sodium carbonate with an acid. Should he use sodium metal or sodium carbonate? Give reason for your answer.
Important Questions on Preparing Salts
EASY
Lower Secondary Stage 9
IMPORTANT
A chemist mixes a piece of calcium with some hydrochloric acid. Write a word equation for reaction.
EASY
Lower Secondary Stage 9
IMPORTANT
A chemist mixes a piece of calcium with some hydrochloric acid. State the symbol or formula for each substance involved in the reaction.
EASY
Lower Secondary Stage 9
IMPORTANT
A chemist mixes a piece of calcium with some hydrochloric acid. Write a balanced symbol equation for the reaction.
HARD
Lower Secondary Stage 9
IMPORTANT
Describe the steps you would take to make crystals of zinc sulphate from zinc granules and sulphuric acid.
EASY
Lower Secondary Stage 9
IMPORTANT
A salt can be made by reacting potassium carbonate solution and sulphuric acid. The carbonate solution is added drop by drop until all the acid has reacted. Name the salt produced.
MEDIUM
Lower Secondary Stage 9
IMPORTANT
A salt can be made by reacting potassium carbonate solution and sulphuric acid. The carbonate solution is added drop by drop until all the acid has reacted. Explain why you need to use an indicator when preparing this salt.
MEDIUM
Lower Secondary Stage 9
IMPORTANT
A salt can be made by reacting potassium carbonate solution and sulphuric acid. The carbonate solution is added drop by drop until all the acid has reacted. Explain why universal indicator would be a better choice of indicator than litmus paper.
MEDIUM
Lower Secondary Stage 9
IMPORTANT
A salt can be made by reacting potassium carbonate solution and sulphuric acid. The carbonate solution is added drop by drop until all the acid has reacted. Explain how to prepare a pure salt solution using this method.
