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(d) Give two ways in which the physical properties of sodium are different from the physical properties of transition elements. 1 ................................................................................................................................................. 2 ................................................................................................................................................. [2] (e) The symbol equation for the production of sodium hydride ...
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7 Sodium is manufactured by electrolysis. (a) Explain why sodium is manufactured by electrolysis and not by reduction with carbon. .............................................................................................................................................. [1] (b) The diagram shows the equipment for the production of sodium. – +
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(d) Ethene can be polymerised. Complete these sentences about the polymerisation of ethene using words from the list. addition   decomposition   neutralisation   poly(ethene)  poly(ethane) reduction   Terylene When ethene polymerises, it produces a molecule called ............................... ...
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(d) Carbon disulfide is a liquid at room temperature. Describe the separation and motion of the particles in carbon disulfide liquid. separation .................................................................................................................................. motion ........................................................................................................................................ [2] (e) Hydrogen sulfide is a gas which turns filter ...
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5 This question is about sulfur and compounds of sulfur. (a) Sulfur is a non-metal. Describe three physical properties which are typical of non-metals. 1 ................................................................................................................................................. 2 ................................................................................................................................................. 3 ................................................................................................................................................. [3] (b) Name one source ...
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(c) Describe the effect each of the following has on the rate of reaction of magnesium with hydrochloric acid. ● The temperature is increased. All other conditions stay the same. ............................................................................................................................................. ● Magnesium ribbon ...
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3 The table shows some properties of four halogens. element   melting point in °C   boiling point in °C   density of liquid at melting point in g/ cm3 fluorine –220 –188 chlorine –101 1.56 bromine –7 ...
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(b) The B3O6 3– ion can be converted to boric acid, H3BO3. Boric acid is also produced when boron trichloride, BCl 3, reacts with water. Complete the equation for this reaction. BCl 3 + ...
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