Unit B624/02 - OCR

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(c) Sodium chloride reacts with silver nitrate. Sodium nitrate and silver chloride are made. Write a WORD equation for this reaction. [1] __________ + __________ __________ + __________ __________ __________ __________ __________ (d) Barium chloride, BaCl 2 , reacts with sodium sulfate, Na 2 SO 4 . Barium sulfate, BaSO 4 , and sodium chloride, NaCl, are made. Write a BALANCED SYMBOL equation for this reaction. ________________________________________ [2] [Total: 6] 22
8 This question is about acids and bases. An acid and base react together. A salt and water are made. (a) Look at the list. It shows the names of some salts. AMMONIUM CHLORIDE AMMONIUM NITRATE AMMONIUM SULFATE POTASSIUM SULFATE SODIUM CHLORIDE SODIUM NITRATE Sodium hydroxide reacts with hydrochloric acid. Write down the name of the salt made. Choose from the list. ________________________________________ [1] (b) Calcium nitrate, Ca(NO 3 ) 2 , is another salt. (i) How many different ELEMENTS are there in this formula? _____________________________________ [1] 23
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Page 17 and 18: (b) The overuse of fertilisers some
Page 19 and 20: (c) Another way of cleaning clothes
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Page 27 and 28: (c) Static electricity can also be
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Page 31 and 32: (ii) An X-ray gun is rotated around
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Unit B624/02 - OCR

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