Chemistry, 29.07.2020 14:01 cabieses23
The sulfuric acid is added slowly from the burette until the indicator just changes colour. The
volume of sulfuric acid needed to just neutralise the lithium hydroxide is noted.
Describe how you would continue the experiment to obtain pure dry crystals of hydrated lithium
sulfate.
Answers: 3
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When the chemicals iron sulfide (fes) and hydrochloric acid (hcl) are combined, bubbles appear from the mixture. 1. does the appearance of bubbles indicate a physical or chemical change? 2. why do the bubbles indicate this change? 3. what property is this?
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Two solids are mixed in a flask and stirred. after a few minutes, the flask becomes cold. which of the following best describes this reaction? a. an exothermic reaction b. a combustion reaction c. an endothermic reaction d. a decomposition reaction
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Determine the length of the object shown. 97.8 mm 97.80 mm 97 mm 98 mm
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The sulfuric acid is added slowly from the burette until the indicator just changes colour. The
vol...
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