Intro to Chemistry Review

Front

What are some ways chemistry shapes the future and enhances our daily lives?

Back

Developing new materials and technologies, Improving healthcare and medicine, Enhancing food production and safety, All of the above.

Front

What are properties that can be observed directly or measured without changing the chemical identity of the substance?

Back

Physical properties.

Front

Which state of matter holds its shape?

Back

Solid.

Front

Which particles in an atom are found in the nucleus and have no charge?

Back

Neutrons.

Front

In a lemonade mixture, which is the solvent?

Back

Water.

Front

What is the definition of a chemical property?

Back

A characteristic of a substance that can only be observed during a chemical reaction.

Front

What is the definition of a physical change?

Back

A change that affects one or more physical properties of a substance without altering its chemical composition.

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 chemically combined.

Front

What is the definition of a mixture?

Back

A combination of two or more substances that are not chemically bonded.

Front

What is the role of protons in an atom?

Back

Protons determine the atomic number and identity of an element.