Add excess copper to nitric (V) acid and filter the mixture. Add excess sodium carbonate solution to the filtrate and filter to obtain residue of copper (II) carbonate
johnmulu answered the question on February 3, 2017 at 10:57
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Starting with copper metal, describe how a sample of crystals of sodium hydrogen carbonate may be prepared in laboratory.
Date posted: February 2, 2017. Answers (1)
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Date posted: February 2, 2017. Answers (1)
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Date posted: February 2, 2017. Answers (1)
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a) Identify gas C1
b) Name the type of reaction undergone by the potassium nitrate
Date posted: February 2, 2017. Answers (1)
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Date posted: February 2, 2017. Answers (1)
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Date posted: February 2, 2017. Answers (1)
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Date posted: February 2, 2017. Answers (1)
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Date posted: February 2, 2017. Answers (1)
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Date posted: February 2, 2017. Answers (1)
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Date posted: February 2, 2017. Answers (1)
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Date posted: February 2, 2017. Answers (1)
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Date posted: February 2, 2017. Answers (1)
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Date posted: February 2, 2017. Answers (1)
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A crystal of iodine, heated gently in a test gave off a purple vapour.
a) Write the formula of the substance responsible for the purple vapour
b) What type of bond is broken when the iodine crystal is heated gently
c) state one use of iodine
Date posted: February 2, 2017. Answers (1)
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Date posted: February 2, 2017. Answers (1)
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Date posted: February 2, 2017. Answers (1)
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Date posted: February 2, 2017. Answers (1)
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a) what are halogens
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Date posted: February 2, 2017. Answers (2)
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Date posted: February 2, 2017. Answers (1)
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The atomic numbers of elements C and D are 19 and 9 respectively. State and explain the electrical conductivity of the compound CD in
a) Solid state
b) Aqueous state
Date posted: February 2, 2017. Answers (1)