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(i)Nitric acid undergoes slow decomposition when it is exposed to light.
(ii)Alkalis attack the thin Aluminium oxide coating on the aluminium making it to wear out because aluminium is amphoteric in nature.
Belan answered the question on February 13, 2019 at 17:12
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Date posted: February 13, 2019. Answers (1)
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Date posted: February 13, 2019. Answers (1)
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State
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(ii)One...(Solved)
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State
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(ii)One reason why their use is being discouraged.
Date posted: February 13, 2019. Answers (1)
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- An oxide of copper in a porcelain boat was reduced by a stream of hydrogen. The results obtained were as follows.
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Mass of...(Solved)
An Oxide of copper in a porcelain boat was reduced by a stream of hydrogen. The results obtained were as follows.
Mass of porcelain boat=4.5g
Mass of boat + Oxide=6.40g
Mass of boat + Copper=6.02g
(i)Determine the empirical formula of the oxide.
(ii)If the relative formula mass of the oxide is 80,determine its chemical formula.
(Cu =64, O=16)
Date posted: February 13, 2019. Answers (1)
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Date posted: February 5, 2019. Answers (1)
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Date posted: February 5, 2019. Answers (1)
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Date posted: February 5, 2019. Answers (1)
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