Amplify Chemical Reaction Review

Front

What is the scientific term given when something burns?

Back

Combustion

Front

What do letters and numbers represent in a chemical formula?

Back

They show the types and number of atoms that make up a substance.

Front

What is a chemical formula?

Back

A representation of a substance using letters and numbers to indicate the types and quantities of atoms.

Front

What is a chemical reaction?

Back

A process where substances (reactants) are transformed into different substances (products).

Front

Are chemical reactions easily reversible?

Back

False, many chemical reactions are not easily reversible.

Front

What is a reactant?

Back

A substance that is present at the start of a chemical reaction.

Front

What is a product in a chemical reaction?

Back

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

Front

What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed; it is conserved.

Front

What is an example of a physical change?

Back

Melting ice is a physical change, as it changes state but not composition.

Front

What is an example of a chemical change?

Back

Burning wood is a chemical change, as it transforms into ash and gases.