making and naming compounds

making and naming compounds - change. .e.g. oxygen + oxygen...

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Elements make compounds Substances Miss Doig
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Explosive experiment Goggles, bench mat, tongs, bunsen, lighter and magnesium. CAREFULLY put magnesium in flame.
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What energy is being released? - When magnesium is burned, energy is released as light. Is there a new substance being formed? - A new substance forms, it is white. Is this new substance lighter or heavier? -This new substance is heavier as there are two different elements in the substance, they are magnesium and oxygen. Making a compound
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Elements make compounds When elements join to make a compound, energy is released and a new substance is formed. A word which means ‘energy released’ is exothermic . What do you think endothermic means?
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Naming Compounds Substances
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Elements and symbols that you should know: 1) Hydrogen 2) Helium 3) Lithium 4) Beryllium 5) Boron 6) Carbon 7) Nitrogen 8) Oxygen 9) Fluorine 10) Neon 11) Magnesium 12) Aluminium 13) Silicon 14) Phosphorus H He Li Be B C N O F Ne Mg Al Si P
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If two identical elements combine then the name doesn’t 
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Unformatted text preview: change. .e.g. oxygen + oxygen oxygen This happens with the following elements: 1) H 2 2) N 2 3) O 2 These elements always go around in pairs. For example, hydrogen looks like this: 1) Sodium + chlorine 2) Magnesium + fluorine When two elements join the name ends with ____ide e.g. Magnesium + oxygen magnesium oxide When three or more elements combine and one of them is oxygen the ending is _____ite or ________ ate e.g. Copper + sulphur + oxygen Copper sulphate 1) Calcium + carbon + oxygen 2) Potassium + carbon + oxygen 3) Sodium + sulphur + oxygen This powerpoint was kindly donated to www.worldofteaching.com http://www.worldofteaching.com is home to over a thousand powerpoints submitted by teachers. This is a completely free site and requires no registration. Please visit and I hope it will help in your teaching....
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making and naming compounds - change. .e.g. oxygen + oxygen...

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