Chemistry Flashcard Review 24

Front

What is a molecule?

Back

A molecule is a group of two or more atoms bonded together, representing the smallest fundamental unit of a chemical compound.

Front

What is a compound?

Back

A compound is a substance formed when two or more different elements are chemically bonded together.

Front

Is H2O a molecule, a compound, or both?

Back

H2O is both a molecule and a compound.

Front

What is a chemical property?

Back

A chemical property is a characteristic of a substance that can only be observed during a chemical reaction, such as reactivity with acids.

Front

What is a physical property?

Back

A physical property is a characteristic of a substance that can be observed without changing its chemical composition, such as color or state.

Front

Can a molecule be a compound?

Back

Yes, a molecule can be a compound if it consists of two or more different elements.

Front

What is an example of a physical property?

Back

An example of a physical property is the blue color of copper sulfate.

Front

What distinguishes a chemical property from a physical property?

Back

A chemical property involves a change in the substance's chemical structure, while a physical property does not.

Front

What does it mean for a substance to react with acid?

Back

If a substance reacts with acid, it indicates a chemical property, showing how it interacts with other chemicals.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance that cannot be broken down into simpler substances, while a compound is made up of two or more elements.