Students recognize that a particular color change is a characteristic property of a substance and that a color change can also be used as evidence that a chemical reaction has occurred. Students will ...

Because substances are made up of different atoms and molecules, they react in characteristic ways. Production of a gas, color changes, a change in temperature, and the formation of a precipitate are ...

Chemical reactions can be represented using equations. Compounds are chemical substances that contain more than one element. They're created during a chemical reaction where atoms are rearranged ...

A key objective of ongoing research rooted in molecular physics is to understand and precisely control chemical reactions at ...

A major scientific breakthrough is set to change the way we make many everyday products—making the process faster, safer, and ...

The Chem-E-Car competition races cars which are only powered by chemical reactions. The goal is to come up with an elegant solution – you can’t simply jettison matter out the back as the ...

People breathing contaminated air over the course of years are at greater risk of developing numerous diseases. This is ...

Reaction formation is a defense mechanism in ... about his masculinity might act overly aggressive. Or a woman with substance use disorder may extol the virtues of abstinence.