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Topic 11 - Metals
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All metals ______ electricity when solid or liquid?
conduct
Metals such as aluminium and copper are used to make cooking pots because they are good conductors of...?
heat
Metals such as copper are used to make electrical cables because they are good conductors of...?
electricity
Metals which are easily shaped are described as being...?
malleable
Metals which are easily drawn out into wires are described as being...?
ductile
Why is iron, in the form of steel, used for many structures?
As it is strong and malleable
Why are aluminium alloys used to make aircraft bodies?
As they are light and cheap
What compounds are produced when metals react with oxygen?
Oxides
What is produced when a metal reacts with water?
Hydrogen gas and an alkali solution of the metal hydroxide
What is produced when a metal reacts with acid?
Hydrogen gas and a salt
The least reactive metals like silver, gold and platinum can be found uncombined - that is they can be found as the _____ metal?
pure
Metals which can be found uncombined in the Earth's crust were among the _____ metals discovered?
first
Metals which are low in the reactivity series such as mercury and silver can be extracted from their ores by _____ alone?
heat
Metals from zinc down to copper in the reactivity series are extracted from their ores by heating the ore with...?
carbon/coke
The extraction of a metal from its ore is an example of a _______ reaction?
reduction
What poisonous gas is used as the reducing agent for iron ore in a blast furnace?
carbon monoxide
How is iron obtained industrially?
By heating iron ore with carbon in a blast furnace
In a blast furnace the first reaction wich occurs is the burning of carbon in a plentiful supply of of air to form...?
carbon dioxide gas
In a blast furnace the second reaction to occur is the reaction between carbon dioxide and hot carbon to form the poisonous gas...?
carbon dioxide
In the third reaction in a blast furnace the carbon monoxide reduces the iron (III) oxide to...?
iron metal and carbon dioxide gas
When two metals are melted together they form an...?
alloy
The properties of an alloy depend on its...?
elements
Steel is an alloy made by mixing together...?
iron and the non-metal carbon
The supply of metals is _______ and so we should conserve them?
finite
Author
Anonymous
ID
76936
Card Set
Topic 11 - Metals
Description
Standard Grade Chemistry - Topic 11 - Metals
Updated
2011-04-03T15:25:37Z
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