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Physics, 07.10.2019 01:00 hdhshshs741
A. an endothermic reaction i taking place in a test tube. what would you expect to feel when you touch the outside of the test tube?
b. identify each of the following changes as either exothermic or endothermic.
- burning a candle
- lighting a gas stove
- using an instant cold pack
- running a car's engine
c. on the potential energy diagram below, label the reactants and products. does the diagram shown an endothermic reaction or an exothermic reaction? write one or two sentences explaining your answer.
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