Year 11 - Science
Developing a reactivity series for metals
Using Earth's resources
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This pupil-friendly study guide includes a unit summary, clear notes, common mistakes, and quick questions with answers.
Unit Summary
This unit covers crude oil, its role as a hydrocarbon source, and separation by fractional distillation. It explores cracking, metal reactivity, and extraction methods, including biological alternatives. Emphasis is on recycling, life-cycle assessments, and evaluating decisions.
Lesson Summary
You will learn to compare the reactions of different metals with water and dilute acids in order to work out the reactivity series for metals.
Key Notes
- A more reactive element will replace a less reactive element in a compound (displacement).
- The more easily a metal atom forms a positive ion, the more reactive it is.
- Some metals react with acid to produce a metal salt and hydrogen gas.
- Some metals react with water to produce a metal hydroxide and hydrogen gas.
- Carbon is a non-metal element often included in the reactivity series between aluminium and zinc.
Vocabulary To Learn
- ion: An ion is an atom or group of atoms with a positive or negative charge due to the loss or gain of electrons.
- salt: A salt is an ionic compound formed from positive and negative ions electrostatically attracted to each other.
- reactivity series: The reactivity series shows metals placed in order of reactivity with the most reactive metal at the top.
- displacement: Displacement is where a more reactive element takes the place of a less reactive element in a compound.
Common Mistakes To Avoid
- Thinking that a metal and acid react together to produce salt and water.
3 Quick Questions (With Answers)
1. Explain the scientific idea in this lesson using two key points.
A more reactive element will replace a less reactive element in a compound (displacement). The more easily a metal atom forms a positive ion, the more reactive it is.
2. Define this scientific word and use it in context. 'ion'
An ion is an atom or group of atoms with a positive or negative charge due to the loss or gain of electrons. Include the word in a full scientific explanation, not as a single label.
3. Correct this common scientific misunderstanding.
Mistake: Thinking that a metal and acid react together to produce salt and water. Correction: Use symbol equations to show how hydrogen is produced, rather than water, due to the absence of oxygen atoms.
More Lessons In This Unit
- Alternative methods of extracting metals: phytoextraction and bioleaching Study Guide
- Alternative methods of extracting metals: phytomining and bioleaching Study Guide
- Cracking fractions of crude oil Study Guide
- Earth's resources and sustainable development Study Guide
- Extraction of metals by reduction Study Guide
- Fractional distillation of crude oil Study Guide
- Life cycle assessments (LCAs) Study Guide
- Polymer structures Study Guide
- Redox reactions Study Guide
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