a) i) B
ii) C
b) D
Kavungya answered the question on May 24, 2019 at 09:27
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Some water samples A, B and C were tested with soap solution. The lathering produced was recorded as good or poor. The results are in the table below.
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Date posted: May 24, 2019. Answers (1)
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Date posted: May 24, 2019. Answers (1)
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Date posted: May 24, 2019. Answers (1)
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i) Which solution is likely to be
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I. acidic rain
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Date posted: May 24, 2019. Answers (1)
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Date posted: May 24, 2019. Answers (1)
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Date posted: May 24, 2019. Answers (1)
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b) In...(Solved)
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Date posted: May 24, 2019. Answers (1)
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Date posted: May 24, 2019. Answers (1)
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Date posted: May 24, 2019. Answers (1)
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Date posted: May 23, 2019. Answers (1)
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Date posted: May 23, 2019. Answers (1)
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Date posted: May 23, 2019. Answers (1)
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Date posted: May 23, 2019. Answers (1)
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b) State what happens to the concentration of the...(Solved)
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Date posted: May 23, 2019. Answers (1)
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a) Why is sodium hydroxide solution preferred to water in the above set-up.
b) What modification should...(Solved)
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Date posted: May 23, 2019. Answers (1)
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then reacted with...(Solved)
0.63g of lead powder were dissolved in excess nitric (V) acid to form lead (II) nitrate solution. All the lead (II) nitrate was
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Date posted: May 23, 2019. Answers (1)
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a) Define half life.
b)...(Solved)
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a) Define half life.
b) Calculate the initial mass x of the radioactive isotope.
Date posted: May 23, 2019. Answers (1)