4.4.1 Reactivity of metals Flashcards
What do metals react with to produce metal oxides?
Metals react with oxygen to produce metal oxides. The reactions are oxidation reactions because the metals gain oxygen.
What is the relationship between a metal’s reactivity and its positive ions?
The reactivity of a metal is related to its tendency to form positive ions.
List the metals in order of reactivity based on their reactions with water and dilute acids.
The metals in order of reactivity are potassium, sodium, lithium, calcium, magnesium, zinc, iron, and copper.
What non-metals are often included in the reactivity series?
The non-metals hydrogen and carbon are often included in the reactivity series.
What can a more reactive metal do to a less reactive metal?
A more reactive metal can displace a less reactive metal from a compound.
What is the limitation on the reactions of metals with water and acids?
The reactions of metals with water and acids are limited to room temperature and do not include reactions with steam.
How can metals less reactive than carbon be extracted from their oxides?
Metals less reactive than carbon can be extracted from their oxides by reduction with carbon.
What does reduction involve?
Reduction involves the loss of oxygen.
What knowledge is required regarding the extraction of metals?
Knowledge and understanding are limited to the reduction of oxides using carbon. Details of processes used in the extraction of metals are not required.
What is oxidation in terms of electrons?
Oxidation is the loss of electrons.
What is reduction in terms of electrons?
Reduction is the gain of electrons.
What should students be able to do regarding ionic equations?
Students should be able to write ionic equations for displacement reactions.
In a given reaction, what should students identify regarding oxidation and reduction?
Students should identify which species are oxidised and which are reduced.
