12 Questions
Which metal is more reactive than lead but less reactive than iron?
Tin
In the reactivity series provided, which metal is the least reactive?
Gold
Would there be a reaction between magnesium and copper sulfate based on the provided information?
Yes, because magnesium is more reactive than copper
Which metal would not react with silver nitrate?
Zinc
Why would there be no reaction between potassium chloride and zinc?
Potassium is more reactive than zinc
Which metal would displace zinc from a solution of its salts based on the reactivity series provided?
Iron
Will aluminum react with magnesium sulfate?
No, because aluminum is less reactive than magnesium.
Would tin react with zinc sulfate?
No, because tin is less reactive than zinc.
Is there a possibility of a reaction between lead and copper sulfate?
No, since lead is more reactive than copper.
Would there be a reaction between magnesium and sodium chloride?
No, as sodium is more reactive than magnesium.
What is the word equation for the reaction between zinc and copper sulfate?
Zinc + Copper Sulfate -> Copper + Zinc Sulfate
Why would there be no reaction between potassium chloride and zinc?
Because zinc is more reactive than potassium.
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.
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.
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