Chemical Reaction Unit Review

Front

What is a neutron?

Back

A neutron is a subatomic particle found in the nucleus of an atom, with no electric charge.

Front

What are elements?

Back

Elements are pure substances that cannot be broken down into simpler substances by chemical means. They are listed on the Periodic Table.

Front

What is a chemical change?

Back

A chemical change is a process where substances combine or break apart to form new substances, such as burning paper.

Front

Do all phase changes require energy?

Back

True. All phase changes (like melting or boiling) require energy to be added or taken away.

Front

What is the chemical symbol for copper?

Back

The chemical symbol for copper is Cu.

Front

What is a physical change?

Back

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

Front

What is the difference between a compound and an element?

Back

A compound is a substance formed when two or more elements chemically bond together, while an element is a pure substance that cannot be broken down.

Front

What is the Periodic Table?

Back

The Periodic Table is a tabular arrangement of chemical elements, organized by their atomic number, electron configuration, and recurring chemical properties.

Front

What is an example of a physical change?

Back

An example of a physical change is melting ice into water.

Front

What is an example of a chemical change?

Back

An example of a chemical change is rust forming on iron.