Chemical Reactions

Front

What is a scientist who studies chemical reactions to create new materials called?

Back

Materials scientist

Front

What are the properties of matter?

Back

Magnetism, Color, Odor, All of the above

Front

What is made of more than one atom?

Back

A molecule

Front

What is an example of a physical change?

Back

Freezing water

Front

If you start a chemical reaction with 5 atoms of helium, how many atoms will you have after?

Back

5 atoms

Front

What is a chemical reaction?

Back

A process where substances (reactants) transform into new substances (products).

Front

What is the law of conservation of mass?

Back

Mass is neither created nor destroyed in a chemical reaction.

Front

What is an atom?

Back

The smallest unit of an element that retains the properties of that element.

Front

What is a chemical equation?

Back

A representation of a chemical reaction using symbols and formulas.

Front

What is a reactant?

Back

A substance that undergoes change in a chemical reaction.