Simple Chemical Reactions 03/07/2018 Simple Chemical Reactions

Testing for hydrogen 03/07/2018 “POP”

Words – gold, corroded, fizzes, disappear Adding acids to metals 03/07/2018 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. Words – gold, corroded, fizzes, disappear

Testing for carbon dioxide 03/07/2018 Gas Limewater Limewater turns milky/cloudy

Adding acid to carbonates 03/07/2018 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

Burning things 03/07/2018 When something is burned it reacts with oxygen. For example: Magnesium + oxygen Magnesium oxide Carbon + oxygen Carbon dioxide Sulphur + oxygen Sulphur dioxide Fire The Fire Triangle Oxygen Fuel Heat

Fuels 03/07/2018 Fuels are substances that can be used to release useful amounts of energy when they burn, e.g. Wood Gas Oil