Podcast
Questions and Answers
Which metal is more reactive than lead but less reactive than iron?
Which metal is more reactive than lead but less reactive than iron?
- Sodium
- Copper
- Potassium
- Tin (correct)
In the reactivity series provided, which metal is the least reactive?
In the reactivity series provided, which metal is the least reactive?
- Gold (correct)
- Sodium
- Calcium
- Zinc
Would there be a reaction between magnesium and copper sulfate based on the provided information?
Would there be a reaction between magnesium and copper sulfate based on the provided information?
- No, because magnesium is less reactive than copper
- No, because magnesium is more reactive than copper
- Yes, because magnesium is more reactive than copper (correct)
- Yes, because magnesium is less reactive than copper
Which metal would not react with silver nitrate?
Which metal would not react with silver nitrate?
Why would there be no reaction between potassium chloride and zinc?
Why would there be no reaction between potassium chloride and zinc?
Which metal would displace zinc from a solution of its salts based on the reactivity series provided?
Which metal would displace zinc from a solution of its salts based on the reactivity series provided?
Will aluminum react with magnesium sulfate?
Will aluminum react with magnesium sulfate?
Would tin react with zinc sulfate?
Would tin react with zinc sulfate?
Is there a possibility of a reaction between lead and copper sulfate?
Is there a possibility of a reaction between lead and copper sulfate?
Would there be a reaction between magnesium and sodium chloride?
Would there be a reaction between magnesium and sodium chloride?
What is the word equation for the reaction between zinc and copper sulfate?
What is the word equation for the reaction between zinc and copper sulfate?
Why would there be no reaction between potassium chloride and zinc?
Why would there be no reaction between potassium chloride and zinc?
Study Notes
Reactivity Series of Metals
- The reactivity series is used to predict which metals will displace other metals from a solution of their salts.
- Metals can be arranged in order of reactivity, with the most reactive metal first and the least reactive metal last.
Metal Reactivity
- Sodium is a very reactive metal.
- Aluminum is more reactive than zinc and less reactive than magnesium.
- Tin is more reactive than copper and less reactive than iron.
- Lead is more reactive than copper and less reactive than tin.
Displacement Reactions
- A reaction takes place when a more reactive metal displaces a less reactive metal from a solution of its salt.
- The reaction between zinc and copper sulfate can be written as a word equation: zinc + copper sulfate → zinc sulfate + copper.
- There would be no reaction between potassium chloride and zinc because potassium is more reactive than zinc.
Chemical Equations
- Metal + oxygen → metal oxide.
- Metal + water → metal hydroxide + hydrogen.
- Metal + acid → metal salt + hydrogen.
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Description
This worksheet for Grade 8 Science covers Unit 5.1 on reactivity and displacement reactions. Students will practice using the reactivity series of metals to predict displacement reactions. They will also complete equations related to metal reactions with oxygen and water.
