Reactions of Metals

Question 1

What are the products of the reaction of sodium with water?

Answer 1

Sodium hydroxide and hydrogen

Question 2

What are the products of the reaction of magnesium with sulfuric acid?

Answer 2

Magnesium sulfate and hydrogen

Question 3

Which substance is oxidised in the reaction represented by this equation?

Lead oxide + carbon → lead + carbon dioxide

Answer 3

Carbon

Question 4

The order of reactivity for three metals is magnesium, zinc, copper, where magnesium is the most reactive. Which of these equations represents a reaction that cannot occur?

Answer 4

Zinc + magnesium chloride → zinc chloride + magnesium

Question 5

Which metal is found uncombined in the Earth’s crust?

Answer 5

Gold

Question 6

Which element removes oxygen from iron(III) oxide in the industrial extraction of iron?

Answer 6

Carbon

Question 7

Which substance is oxidised in the reaction represented by this ionic equation? - Higher

Zn + Cu2+ → Zn2+ + Cu

Answer 7

Zinc