Which statement about the reactivity series is correct?
Metals at the bottom of the reactivity series lose electrons more easily than metals at the top of the series
Metals at the top of the reactivity series react less vigorously than metals at the bottom of the series
Metals at the top of the reactivity series lose electrons more easily than metals at the bottom of the series
What are the products of the reaction of sodium with water?
Sodium oxide and hydrogen
Sodium hydroxide and water
Sodium hydroxide and hydrogen
What are the products of the reaction of magnesium with sulfuric acid?
Magnesium sulfate and hydrogen
Magnesium sulfate and water
Magnesium chloride and water
Which substance is oxidised in the reaction represented by this equation?
Lead oxide + carbon → lead + carbon dioxide
Lead oxide
Carbon
Lead
Which of these equations represents a displacement reaction?
Copper + oxygen → copper oxide
Zinc + copper sulfate → zinc sulfate + copper
Sodium + water → sodium hydroxide + water
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?
Zinc + magnesium chloride → zinc chloride + magnesium
Zinc + copper chloride → zinc chloride + copper
Magnesium + copper chloride → magnesium chloride + copper
Which metal is found uncombined in the Earth's crust?
Gold
Zinc
Magnesium
Which element removes oxygen from iron(III) oxide in the industrial extraction of iron?
Copper
Calcium
Which half equation represents the reaction that occurs at the anode in the extraction of aluminium by electrolysis? - Higher
Al3+ + 3e- → Al
2O2- → O2 + 4e-
C + O2 → CO2
Which substance is oxidised in the reaction represented by this ionic equation? - Higher
Zn + Cu2+ → Zn2+ + Cu
Zn
Cu2+
Zn2+