a) The potassium iodide solution turned from colourless to dark brown.
b) Cl<sub>2(aq)</sub> + 2I<sup>-</sup><sub>(aq)</sub> $\rightarrow$ I<sub>2(aq)</sub> + 2Cl<sup>-</sup><sub>(aq)</sub>
Chlorine undergoes reduction while iodide ions undergo oxidation hence the reaction is redox.
johnmulu answered the question on February 10, 2017 at 13:02
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Two reagents that can be used to prepare chlorine gas are manganese (IV) oxide and concentrated hydrochloric acid
i) Write an equation for the reaction
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iii) Describe how the chlorine gas could be dried in the laboratory
Date posted: February 10, 2017. Answers (1)
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c) Propene gas molecules are converted into a giant molecule
Date posted: February 10, 2017. Answers (1)
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Date posted: February 10, 2017. Answers (1)
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Date posted: February 10, 2017. Answers (1)
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When excess chlorine gas was bubbled into hot concentrated sodium hydroxide, the following reaction occurred.
3Cl2(g) + 6NaOH(aq) $\rightarrow$ NaClO3(aq) + 5NaCl(aq) + 3H2O(l)
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Date posted: February 10, 2017. Answers (1)
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Date posted: February 10, 2017. Answers (1)
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Date posted: February 10, 2017. Answers (1)
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Date posted: February 7, 2017. Answers (1)
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Date posted: February 7, 2017. Answers (1)
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Date posted: February 7, 2017. Answers (1)
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Date posted: February 7, 2017. Answers (1)
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Date posted: February 7, 2017. Answers (1)
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State the property of the acid shown in each case.
i) Ethanol
ii) Copper
Date posted: February 7, 2017. Answers (1)
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Date posted: February 7, 2017. Answers (1)
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Date posted: February 7, 2017. Answers (1)
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Date posted: February 7, 2017. Answers (1)
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$2H_2O(l) + 5SO_2(g) + 2KMnO_4(aq) \rightarrow K_2SO_4(aq) + 2MnSO_4(aq) + 2H_2SO_4(aq)$
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Date posted: February 7, 2017. Answers (1)
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