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Boiling removes Ca2+/Mg2+ in water, this reduces conductivity of particles.
Addition of washing soda, add Na+
ions in water therefore restoring the conductivity of particles.
john3 answered the question on November 5, 2017 at 06:21
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Date posted: November 5, 2017. Answers (1)
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Date posted: November 5, 2017. Answers (1)
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Date posted: November 5, 2017. Answers (1)
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Date posted: November 5, 2017. Answers (1)
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Date posted: November 5, 2017. Answers (1)
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Date posted: November 5, 2017. Answers (1)
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(i) State and explain the observation made(Solved)
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Date posted: November 5, 2017. Answers (1)
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Date posted: November 4, 2017. Answers (1)
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(a) During the extraction of Aluminium, the oxide of metal is dissolved in Molten cryolite before it is electrolysed. Explain.
(1mk)
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Date posted: November 4, 2017. Answers (1)
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Date posted: November 4, 2017. Answers (1)