Simple Chemical Reactions Name ___________________

Testing for hydrogen Hydrogen makes a ___________ splint go _______. “POP” Hydrogen makes a ___________ splint go _______.

Testing for carbon dioxide Carbon dioxide Gas Limewater Carbon dixoide makes ___________ go __________

Burning things Fire When something is burned it reacts with _________. For example: Magnesium + _______ Magnesium oxide Carbon + _______ Carbon dioxide Sulphur + _______ Sulphur dioxide The Fire Triangle A fire needs three things to keep burning: __________ Fire Fuel Oxygen Heat

Fuels Fuels are substances that burn to release heat e.g. Wood Gas Oil

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

Products of burning fossil fuels When fossil fuels burn ________ _________ and ________ are made. We can test the carbon dioxide because it turns _________ _________. We can test the water because it freezes at _______ ºC and boils at ______ ºC .

Words – gold, hydrogen, bubble, copper, used up Adding acids to metals Some metals react with acids to produce ________ gas. The gas will make the mixture _______ and the metal will eventually be _______ _____. Some metals, like _______ and _______, are so unreactive that nothing will happen. Words – gold, hydrogen, bubble, copper, used up

Adding acid to carbonates Carbonates are compounds that react with acids to make _________ __________ gas. This makes the mixture _________. When all of the carbonate is used up the _________ will stop. Limewater goes cloudy Carbonates used to be used as building materials but aren’t any more because acid rain would eventually ________ the building. Words – dissolve, bubble, carbon dioxide, bubbles