Unit B624/02 - OCR

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(ii) John makes some calcium nitrate in the laboratory. He expects to make 80 g of calcium nitrate. He only makes 64 g. Calculate his percentage yield. _______________________________________ _______________________________________ _______________________________________ answer ________ % [2] [Total: 4] 24
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Page 1 and 2: Candidate Forename Centre Number Ca
Page 3 and 4: EQUATIONS speed = distance time tak
Page 5 and 6: Answer ALL the questions. SECTION A
Page 7 and 8: (c) The scientist says that the pla
Page 9 and 10: (b) Tomato plants are often grown i
Page 11 and 12: 3 Plants need minerals to grow. The
Page 13 and 14: (iii) Most plant leaves are NOT ada
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Page 17 and 18: (b) The overuse of fertilisers some
Page 19 and 20: (c) Another way of cleaning clothes
Page 21 and 22: lakes and reservoirs sedimentation
Page 23: 8 This question is about acids and
Page 27 and 28: (c) Static electricity can also be
Page 29 and 30: 11 ULTRASOUND scans are used in hos
Page 31 and 32: (ii) An X-ray gun is rotated around
Page 33 and 34: (c) Background radiation is always
Page 35 and 36: Copyright Information OCR is commit

Unit B624/02 - OCR

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