Lucy Hawkins, Fran Eardley, Stuart Lloyd and, Gemma Young Solutions for Chapter: Preparing Salts, Exercise 11: End of Chapter Review
Lucy Hawkins Science Solutions for Exercise - Lucy Hawkins, Fran Eardley, Stuart Lloyd and, Gemma Young Solutions for Chapter: Preparing Salts, Exercise 11: End of Chapter Review
Attempt the free practice questions on Chapter 6: Preparing Salts, Exercise 11: End of Chapter Review with hints and solutions to strengthen your understanding. Cambridge Lower Secondary Science Stage 9: Student's Book solutions are prepared by Experienced Embibe Experts.
Questions from Lucy Hawkins, Fran Eardley, Stuart Lloyd and, Gemma Young Solutions for Chapter: Preparing Salts, Exercise 11: End of Chapter Review with Hints & Solutions
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.
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.
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.
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.
Joy reacts small pieces of magnesium with some sulphuric acid. She observes bubbles being made. When the fizzing stops she notices that all the magnesium has disappeared. She tests the solution with universal indicator paper, and it changes colour to orange. Which reactant was in excess? Give a reason for your answer.
Joy reacts small pieces of magnesium with some sulphuric acid. She observes bubbles being made. When the fizzing stops she notices that all the magnesium has disappeared. She tests the solution with universal indicator paper, and it changes colour to orange. Her teacher tells joy that she must have a neutral solution otherwise her salt crystals will not be pure. Explain why and describe how she would do this.
Jed is asked to write a balanced symbol equation for the reaction between calcium and oxygen to produce calcium oxide. This is his answer:
Explain why this is not correct.
Jed is asked to write a balanced symbol equation for the reaction between calcium and oxygen to produce calcium oxide. This is his answer:
The above equation is not correct. Write the correct balanced symbol equation.
