IGCSE Metal reactivity series with displacement

When a metal reacts with cold water the products are...

• metal hydroxide and oxygen gas

• metal hydroxide and hydrogen gas

• metal oxide and oxygen gas

• metal oxide and hydrogen gas

What is the correct equation when potassium reacts with water?

• 2K (s) + H₂O (l) -->  K₂O (aq) + H₂ (g)

• K (s) + 2H₂O (l) -->  KOH (aq) + CO₂ (g)

• 2K (s) + 2H₂O (l) -->  2KOH (aq) + H₂ (g)
• K (s) + H₂O (l) -->  KOH (aq) + H₂ (g)

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-7

NGSS.HS-PS1-2

Which of the following is correctly listed in order of increasing reactivity?

• Mg , Li , Na, K

• Mg, Na, Li, K

• Na, Li, Mg, K

• K, Mg, Na, Li

Which of these metals does not react with water?

• lithium

• magnesium

• copper

• calcium

Which of these metals would be the most reactive in dilute acid?

• magnesium

• calcium

• aluminum

• zinc

What is made when magnesium reacts with hydrochloric acid?

• magnesium nitrate and hydrogen gas
• magnesium sulfate and hydrogen gas
• magnesium oxide and oxygen gas
• magnesium chloride and hydrogen gas

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-5

Which of the following is the correct equation when aluminum reacts with sulfuric acid?

• 2Al + 3H₂SO₄ --> Al₂(SO₄)₃ + 3H₂

• 2Al + 2H₂SO₄ --> Al(SO₄)₃ + 2H₂

• Al + H₂SO₄ --> AlSO₄ + H₂

• 2Al + 2H₂SO₄ (s) --> Al₂(SO₄)₃ + 2H₂

Copper displaces silver from a solution of silver nitrate. This tells you that

• nitrate ions are displaced by copper

• copper is an unreactive metal

• copper is more reactive than silver

• copper is less reactive than silver

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

• CuNO₃ + Ag → Cu + AgNO₃

• Cu + 2 AgNO₃ → Cu(NO₃)₂ + 2 Ag

• Cu + AgNO₃ → CuNO₃(aq) + Ag

• Cu + Ag(NO₃)₂ → Cu(NO₃)₂ + Ag

Which one of the following metals reacts most vigorously with cold water?

• calcium

• magnesium

• aluminium

• Zinc