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Reactions of Metals 01
Test your knowledge of metals in this quiz.

Reactions of Metals 01

Try this KS3 Science quiz on reactions of metals. Metals form a reactivity series which can be used to predict their reactions. The most reactive metals, such as lithium, potassium and sodium, are all metals which react with cold water. Many metals that you meet in school will react with dilute acids. When they do, they release bubbles of hydrogen gas and form a metal salt. The least reactive metals, like gold and platinum, don't react with water or dilute acids at all. This makes them very useful in situations where corrosion could be a problem e.g. jewellery and electrical contacts in computers.

Metals that are higher in the reactivity series will displace metals that are lower in the series from their compounds. Iron is more reactive than copper so if you put an iron nail into a solution of a copper compound like copper sulphate, the iron and copper swap places. Iron and copper sulphate become copper and iron sulphate. Metal carbonates also react with acids. In this case, the position of the metal in the reactivity series doesn't matter, carbonates of metals lower down react exactly the same as carbonates of more reactive metals.

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If a metal reacts with a dilute acid, the products will be .......
a salt and carbon dioxide gas
a salt and hydrogen gas
a salt and water
hydrogen gas and carbon dioxide gas
The salt depends on the acid and metal used, so if the metal was iron and the acid was nitric, the salt would be sodium nitrate
Using your knowledge of metals and their reactions, which list places the metals in order of DECREASING reactivity?
Copper, gold, zinc, iron
Iron, magnesium, sodium, copper
Sodium, magnesium, iron, copper
Zinc, gold, copper, sodium
If you forget, you can easily look up the reactivity series but knowing the main metals in order off by heart can save time when answering questions or working out what is happening in some chemical reactions
Zinc is more reactive than copper, so can take its place in a reaction with copper sulphate. Which is the correct word equation?
Zinc + copper + sulphate → zinc sulphate + copper
Zinc + copper sulphate → zinc + sulphate + copper
Zinc + copper sulphate → zinc sulphate + copper
Zinc sulphate + copper → zinc + copper sulphate
It is just a case of swapping the zinc and copper round. A word equation shows you the starting and finishing materials
Magnesium ribbon reacts with acid. It will react more vigorously if .......
less magnesium is added
more acid is added
more water is added
the acid is warmed up
When you warm up a chemical reaction, it always goes faster
Some acid is put onto strips of metal. What would you see if the metals react?
Colour change
Some bubbles of gas
More reactive metals also release a lot of heat in this reaction
Metal carbonates react with acids to produce carbon dioxide gas. It can be tested for using .......
a glowing splint
a lighted splint
universal indicator
The limewater turns cloudy (milky)
The metals lithium, sodium and potassium (which react with cold water) are found in which group of the periodic table?
They are called the alkali metals
Metals are .......
good conductors of heat and electricity
magnetic materials
poor conductors of heat and electricity
usually liquids or gases at room temperature
There is no correlation between the position in the reactivity series and how well a metal conducts electricity
Reactive metals can take the place of a less reactive metal in some reactions. This is known as .......
The more reactive metal displaces (kicks out) the less reactive metal from its compound
A metal which has been used for pipes and in coins because it has little reaction with air or water is .......
Can you imagine what would happen to a water pipe made from potassium?!
Author:  Sue Davison

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