Dissolve actal in water and to the solution add universal indicator. Match the colour on the pH chart to determine the pH
johnmulu answered the question on February 2, 2017 at 05:33
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Starting with red roses, describe how;
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ii) The solution can be shown to be an indicator
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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10g of sodium hydrogen carbonate were dissolved in 20 cm3 of water in a boiling tube. Lemon juice was then added dropwise with shaking unit there was no further observable change
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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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When solid A was heated strongly, it gave off water residue. When water was added to the solid residue, the original solid A, was formed
a) What name is given to the process described
b) Give one example of solid A
Date posted: February 2, 2017. Answers (1)
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Date posted: February 1, 2017. Answers (1)
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Date posted: February 1, 2017. Answers (1)
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Date posted: January 31, 2017. Answers (1)
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Hydrated cobalt (II) chloride exists as pink crystals and anhydrous cobalt (II) chloride is a blue powder. Describe a laboratory experiment that can be used to show that the action of heat on hydrated cobalt (II) chloride is a reversible action.
Date posted: January 31, 2017. Answers (1)
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State and explain the change in mass that occurs when the following substances are separately heated in open crucibles.
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Date posted: January 31, 2017. Answers (1)
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Date posted: January 28, 2017. Answers (1)
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Date posted: January 16, 2017. Answers (1)
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Date posted: January 16, 2017. Answers (1)
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Date posted: January 16, 2017. Answers (1)