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100 Level Department of Science Laboratory Technology exam questions and detailed answers. Download the answers in document format. Correct, detailed, and straightforward answers.
Questions:
a. Draw the diagrammatical representation of exothermic and endothermic reaction and give three examples of each.
b. What is an acid and a base according to the Arrhenius concept?
c. Why is the enthalpy change of endothermic reaction positive?
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