tell an experiment to show the formation of a compound
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What is a chemical reaction?
A chemical reaction is the change of a substance into a new one that has a different chemical identity.
How can I tell if a chemical reaction is occurring?
A chemical reaction is usually accompanied by easily observed physical effects, such as the emission of heat and light, the formation of a precipitate, the evolution of gas, or a color change. Absolute confirmation of a chemical change can only be validated by chemical analysis of the products!
Take a look at the following image and describe what you see going on? What are the key indicators of a chemical change? The key is observation!
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