Describe how State the properties of Explain why copper is useful for What is the chemical formula for copper can be copper. (a) wires (b) water pipes the copper ore malachite? extracted and purified Write word and symbol Write a word and symbol Explain how electrolysis is used to equations for the thermal equation for the reduction of purify impure copper. decomposition of copper copper oxide using carbon. carbonate. Describe the Why is copper mining more State two reasons why Give one reason why recycling benefits and difficult than it used to be? recycling copper is useful. copper is difficult. drawbacks of recycling copper Recognise some State the main metal in State the main metals in brass State the main metal in solder common alloys amalgalm and its typical use. and a typical use for it. and a typical use for it. and their uses Relate the Draw a diagram to show how Draw a diagram to show how Explain why alloys are properties of an the atoms are arranged in an the are arranged in an stronger and harder than the alloy to a particular elemental metal. alloy. elements that make them up. use Explain the use of What is a shape memory State the two elements that Name one use of nitinol. alloys’ alloy? are used in nitinol. ‘smart Explain why Is aluminium more or less Draw a particle diagram to Use the diagram you have drawn aluminium does not reactive than iron? show the oxide layer which to explain why aluminium does corrode forms on aluminium. not corrode. Describe the Which two substances are Name two substances which Explain why painting an iron conditions needed needed for iron to rust? speed up rusting. object prevents it from rusting. for rusting to
Describe how copper can be extracted and purified State the properties of copper. Explain why copper is useful for (a) wires (b) water pipes What is the chemical formula for the copper ore malachite? Write word and symbol equations for the thermal decomposition of copper carbonate. Write a word and symbol equation for the reduction of copper oxide using carbon. Explain how electrolysis is used to purify impure copper. Describe the benefits and drawbacks of recycling copper Why is copper mining more difficult than it used to be? State two reasons why recycling copper is useful. Give one reason why recycling copper is difficult. Recognise some common alloys and their uses State the main metal in amalgalm and its typical use. State the main metals in brass and a typical use for it. State the main metal in solder and a typical use for it. Relate the properties of an alloy to a particular use Draw a diagram to show how the atoms are arranged in an elemental metal. Draw a diagram to show how the are arranged in an alloy. Explain why alloys are stronger and harder than the elements that make them up. Explain the use of ‘smart alloys’ What is a shape memory alloy? State the two elements that are used in nitinol. Name one use of nitinol. Explain why aluminium does not corrode Is aluminium more or less reactive than iron? Draw a particle diagram to show the oxide layer which forms on aluminium. Use the diagram you have drawn to explain why aluminium does not corrode. Describe the conditions needed for rusting to Which two substances are needed for iron to rust? Name two substances which speed up rusting. Explain why painting an iron object prevents it from rusting.
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