Unit 5.1 Simple Review

When magnesium reacts with copper sulphate, there are two products. What are they?

• Magnesium  and Copper

• Magnesium Sulphate and Copper

• Magnesium Sulphate and Copper Sulphate

• Magnesium and Copper Sulphate

When copper and magnesium sulphate are mixed together, there is no reaction. Why?

• Magnesium is more reactive than copper

• Copper is more reactive than magnesium

• Copper never reacts with metal salts

• Magnesium Sulphate never reacts with metals

calcium + zinc nitrate goes to

• Calcium + zinc nitrate 

• Zinc + calcium nitrate

• there will be no reaction

• Zinc + calcium chloride

 Which of the following the most reactive in dilute acid

• magnesium

• aluminum

• calcium

• zinc

 When scrap iron is added to blue copper sulphate solution, a pinky-brown deposit is formed and a pale green solution is left above it. The pale green solution is of?

• iron oxide

• sulphuric acid

• copper chloride

• iron sulphate

What will be reaction if less reactive metal is added in a solution with more reactive metal compound?

• vigorous reaction

• fizzing gas produced

• burns moderately

• no reaction

Which of these reactions is possible? 

• Zn (s) + CuO (aq) --> ZnO (aq) + Cu (s)

• Cu (s) + FeSO₄ (aq) --> CuSO₄ (aq) + Fe (s)

• Pb (s) + ZnCl₂ (aq) --> PbCl₂ (a) + Zn (s)

• Au (s) + 2HCl (aq) --> AuCl₂ (aq) + H₂ (g)

Which one of the following equations correctly represents the reaction of silver nitrate with copper metal?

• CuNO₃(aq) + Ag(s) → Cu(s) + AgNO₃(aq)

• Cu(s) + 2 AgNO₃(aq) → Cu(NO₃)₂(aq) + 2 Ag(s)

• Cu(s) + AgNO₃(aq) → CuNO₃(aq) + Ag(s

• Cu(s) + Ag(NO₃)₂(aq) → Cu(NO₃)₂(aq) + Ag(s)

What is the measure of how reactive a metal is?

• Number of neutrons

• Tendency to lose electrons

• Atomic mass

• Number of protons

Which metal is more reactive - one high up or one lower down on the reactivity series?

• One high up

• One lower down

• Both are equally reactive

• Depends on the metal