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Understanding Metals and Non-Metals: Properties, Reactions, and Testing Methods

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This guide covers the essential properties and reactions of metals and non-metals. Metals are typically solid, tough, shiny, and excellent conductors of electricity and heat, while non-metals are weak, brittle, and do not conduct these energies. It also discusses reactions of metals with acids, carbonates, and oxide compounds, including how to test for hydrogen and carbon dioxide. The pH scale is explained to identify acids and alkalis, alongside safety symbols and writing chemical equations for various reactions.

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Understanding Metals and Non-Metals: Properties, Reactions, and Testing Methods

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Presentation Transcript

  1. Metals Revision Properties and Reactions of Metals

  2. Properties of Metals • Usually Solids • Tough • Shiny • Conduct Electricity • Conduct Heat

  3. Properties of Non Metals • The Opposite! • Solids, Liquids and Gases • Weak and Brittle • Dull • Do Not conduct electricity or heat

  4. Reactions of Metals with Acid METAL + ACID  SALT + HYDROGEN Test for Hydrogen? Burns with a squeaky pop!

  5. Acid and Carbonate Rule Acid + Carbonate  Salt + Water + Carbon Dioxide Test For Carbon Dioxide? Turns limewater milky

  6. REACTION RULE Acid + Metal Oxide  Salt + Water

  7. Equations Copper Oxide + Sulphuric Acid  Copper Sulphate + Water CuO + H2SO4  CuSO4 + H2O

  8. Reaction Rule Acid + Alkali  Salt + Water

  9. Reaction Equations Potassium + Hydrochloric  Potassium + Water Hydroxide Acid Chloride KOH+ HCl  KCl + H2O

  10. pH Scale • Using indicator will tell you the pH of the substance you are investigating • Match the colour to the chart • pH of Less than 7 = Acid • pH of Over 7 = Alkali • pH = 7 = Neutral

  11. pH of Less than 7 = AcidpH of Over 7 = AlkalipH = 7 = Neutral

  12. What do these Safety symbols stand for?

  13. Try Writing Formula Equations Magnesium + Oxygen  Magnesium Oxide

  14. Try Writing Formula Equations Sodium + Hydrochloric  Sodium + Water Hydroxide Acid Chloride

  15. Try Writing Formula Equations Sulphuric + Copper  Copper + Water + Carbon Acid Carbonate Sulphate Dioxide

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