What do all chemical reactions have in common? Most students describe a chemical reaction as an event where an explosion, color change, or a gas is formed. As a prerequisite for this lesson students need only be acquainted with the particulate nature of matter. The main learning objective is the recognition that all chemical reactions create new molecules and that in a chemical reaction the original atoms get rearranged, bonding together in different ways. Overall, the lesson will take about 45-55 minutes.
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