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1. 23/09/15
Simple Chemical ReactionsSimple Chemical Reactions

2. 23/09/15
Testing for hydrogenTesting for hydrogen
“POP”

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Adding acids to metalsAdding acids to metals
Words – gold, corroded, fizzes, disappear
If an acid is added to a (fairly reactive) metal the metal will be quickly
________ by the acid. We can see a reaction happening because the
mixture _________ and the metal eventually __________.
Some metals, like ____, are so unreactive that nothing will happen.

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Testing for carbon dioxideTesting for carbon dioxide
Gas
Limewater turns
milky/cloudy
Limewater

5. 23/09/15
Adding acid to carbonatesAdding acid to carbonates
Carbonates are compounds containing carbon and oxygen. When an acid is
added to a carbonate the carbonate starts to _______. A gas called
______ _______ is produced.
Carbonates used to be used as building materials but aren’t any more
because acid rain would eventually ________ the building.
Words – dissolve, fizz, carbon dioxide, oxygen

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Burning thingsBurning things
When something is burned it reacts with oxygen. For example:
Magnesium + oxygen Magnesium oxide
Carbon + oxygen Carbon dioxide
Sulphur + oxygen Sulphur dioxide
The Fire
Triangle
Fire
Fuel
Oxygen
Heat

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FuelsFuels
Fuels are substances that can be used to release useful
amounts of energy when they burn, e.g.
Oil GasWood

8. 23/09/15
Burning fuelsBurning fuels
When fossil fuels (coal, oil and gas) are burned they produce
water and carbon dioxide. We can use this apparatus to show
this:
In this example the reaction is:
Methane + oxygen Carbon dioxide + water