Chemical Reactions Vocab and Concepts (Amplify)

Front

What is a property in chemistry?

Back

A property is something that can be observed about a substance, such as color, smell, or boiling point.

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What is the boiling point of a substance?

Back

The boiling point is the temperature at which a substance changes from the liquid phase to the gas phase.

Front

Which is usually larger: atoms or molecules?

Back

Molecules are usually larger than atoms.

Front

What is a substance in chemistry?

Back

A substance is something that is made of all the same atoms or groups of atoms.

Front

What is a chemical reaction?

Back

A chemical reaction is a process in which atoms rearrange to form new substances.

Front

What is a reactant?

Back

A reactant is a substance that undergoes a chemical change in a reaction.

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What is a product in a chemical reaction?

Back

A product is a substance that is formed as a result of a chemical reaction.

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What is a chemical formula?

Back

A chemical formula is a way of expressing the composition of a substance using symbols for its constituent elements.

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What is the difference between a physical change and a chemical change?

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A physical change alters the form of a substance but not its chemical composition, while a chemical change results in the formation of new substances.

Front

What is an atom?

Back

An atom is the smallest unit of an element that retains the properties of that element.