Chemical change higher tier review

This lesson will focus on revision of higher tier content from unit 4. This will include oxidation and reduction in terms of electrons, ionic equations, strong and weak acids and half equations.

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.What is name of the negative electrode in electrolysis?

1/8

Q2.Why does the ionic compound in electrolysis need to be molten or dissolved?

2/8

Q3.Which electrode do negative ions move towards during electrolysis?

3/8

Q4.What will for at the cathode during the electrolysis of molten lead iodide?

4/8

Q5.What will form at the cathode in the electrolysis of calcium bromide solution?

5/8

Q6.What will form at the anode in the electrolysis of silver nitrate solution?

6/8

Q7.Why can't heating with carbon be used to extract aluminium from aluminium oxide?

7/8

Q8.What is aluminium oxide dissolved in during the electrolysis to extract aluminium?

8/8

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.What is name of the negative electrode in electrolysis?

1/8

Q2.Why does the ionic compound in electrolysis need to be molten or dissolved?

2/8

Q3.Which electrode do negative ions move towards during electrolysis?

3/8

Q4.What will for at the cathode during the electrolysis of molten lead iodide?

4/8

Q5.What will form at the cathode in the electrolysis of calcium bromide solution?

5/8

Q6.What will form at the anode in the electrolysis of silver nitrate solution?

6/8

Q7.Why can't heating with carbon be used to extract aluminium from aluminium oxide?

7/8

Q8.What is aluminium oxide dissolved in during the electrolysis to extract aluminium?

8/8

Video

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Worksheet

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This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Chemical Change Higher Tier Review

This quiz will test your knowledge of the higher tier content from the chemical change unit of chemistry.

Q1.What is the definition of reduction?

1/7

Q2.Does this equation represent oxidation or reduction?

2/7

Q3.An acid has a large number of acid particles per volume of water and the acid has partially ionised. Which is the correct description of this acid?

3/7

Q4.Will a strong acid have a higher or lower pH than a weak acid?

4/7

Q5.The pH of an acid with a concentration of 0.015 mol/dm³ is pH 4. What will be it's pH at a concentration of 1.5?

5/7

Q6.During the electrolysis of sodium chloride solution what would be the correct half equation for the reaction at the cathode?

6/7

Q7.What will form at the anode and cathode during the electrolysis of copper sulfate solution?

7/7

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Chemical Change Higher Tier Review

This quiz will test your knowledge of the higher tier content from the chemical change unit of chemistry.

Q1.What is the definition of reduction?

1/7

Q2.Does this equation represent oxidation or reduction?

2/7

Q3.An acid has a large number of acid particles per volume of water and the acid has partially ionised. Which is the correct description of this acid?

3/7

Q4.Will a strong acid have a higher or lower pH than a weak acid?

4/7

Q5.The pH of an acid with a concentration of 0.015 mol/dm³ is pH 4. What will be it's pH at a concentration of 1.5?

5/7

Q6.During the electrolysis of sodium chloride solution what would be the correct half equation for the reaction at the cathode?

6/7

Q7.What will form at the anode and cathode during the electrolysis of copper sulfate solution?

7/7

Lesson summary: Chemical change higher tier review

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