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Chemistry Practice Questions and Answers (Q&A)

The answer to this is D. The given description can be associated with group number 16 in the periodic table. This group is also known as chalcogens. There are a lot of people who are familiar with this group as the oxygen family. It also contains different elements some of which people ar...Read More

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I can see how the digestion of food involves a chemical change as the food that was once solid is dissolved by the stomachs acid. However, boiling water also undergoes a chemical change as the substance that was once in a liquid form changes into vapor or a gasous form.

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Why different than the properties of reactant please define me why is it or not others?

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