1. Revision on Chemical Changes
What compound is made when you react metal oxides with the following:
Carbon
Hydrogen

2. Finished? Try the questions on page 100-101.
1. Write down the metals in order of their reactivity
2. Which gas is given off when a metal reacts with water and acids.
What is the test for this gas?
3. What is a displacement reaction?
4. Where is hydrogen and carbon placed in the reactivity series? Describe what happens.
9. What is a salt?
Write the equation and example.
6. Which metals are so unreactive they are found as the metals without reacting with anything else?
5. What is a metal ore?
8. What is reduction of oxide by hydrogen?
7. What is reduction of oxide by carbon?
14. How do you collect a pure, dry sample of crystals of salt?
10. Draw a diagram to show how copper sulfate crystals are obtained.
12. Copy the table of charges for positive and negative ions.
13. Write an equation to show a reaction between acid and alkali.
15. Write the equation for acids and carbonates and write an example of this.
Finished? Try the questions on page
11. What is neutralisation?
Writ the equation and an example.
16. Draw the pH scale and label with what it shows and examples.
17. What are acids, alkalis and bases?

3. Finished? Try the questions on page 100-101.
(Pages 84-97)
2. Which gas is given off when a metal reacts with water and acids.
What is the test for this gas?
3. What is a displacement reaction?
4. Where is hydrogen and copper placed in the reactivity series?
1. Write down the metals in order of their reactivity
9. What is a salt?
Write the equation and example.
6. Which metals are so unreactive they are found as the metals without reacting with anything else?
5. What is a metal ore?
8. What is reduction of oxide by hydrogen?
7. What is reduction of oxide by carbon?
14. How do you collect a pure, dry sample of crystals of salt?
10. Draw a diagram to show how copper sulfate crystals are obtained.
12. Copy the table of charges for positive and negative ions.
13. Write an equation to show a reaction between acid and alkali.
15. Write the equation for acids and carbonates and write an example of this.
Finished? Try the questions on page
11. What is neutralisation?
Writ the equation and an example.
16. Draw the pH scale and label with what it shows and examples.
17. What are acids, alkalis and bases?