Topic 9 - 9.2 - Reactions of Metals

Question 1

Name the 3 substances metals can react with.

Answer 1

• water, acid and oxygen
• the reactivity of the metal decide which reactions it takes part in.

Question 2

• Which metals react with water
• What is the general equation?

Answer 2

• Potassium down to Magnesium
• Metal + water → Metal hydroxide + Hydrogen

Question 3

• Which metals react with acids
• What is the general equation?

Answer 3

• Potassium down to Lead
• Metal + Acid → Salt + Hydrogen

Question 4

Describe the relationship between the ranking of the reactivity series and the rate of reaction of each metal

Answer 4

Higher ranking in the reactivity series = faster rate of reaction

e.g. Mg reacts faster than Cu because its higher in the series

Question 5

• Which metals react with oxygen
• What is the general equation?

Answer 5

• Potassium down to Silver
• Metal + Oxygen → Metal Oxide

Question 6

List the reactivity series in order of highest to lowest

Answer 6

• Potassium (K)
• Sodium (Na)
• Lithium (Li)
• Calcium (Ca)
• Magnesium (Mg)
• Aluminium (Al)
• Zinc (Zn)
• Iron (Fe)
• Nickel (Ni)
• Tin (Sn)
• Lead (Pb)
• Copper (Cu)
• Mercury (Hg)
• Silver (Ag)
• Gold (Au)