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Unit 4 · Chemical Reactions

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AP Chemistry · Topic 4.1: Introduction for ReactionsOpen topic

Original PrepAtlas question. This is not an official College Board question.

Experiment I converts pure liquid water to water vapor. Experiment II converts water into separately identified hydrogen and oxygen gases. Which classification is supported by the identities of the products?

AI is physical; II is chemical, because only II produces different substances.BBoth are chemical, because a gas appears in each experiment.CBoth are physical, because each experiment begins with water.DI is chemical; II is physical, because II produces elements.

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Unit 4 · Chemical Reactions

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