Chemistry Vocabulary - Quiz

What is the smallest unit of matter?

• Molecule

• Atom

• Element

• Ion

What is formed when atoms are held together by bonds?

• Ion

• Product

• Molecule

• Reactant

What table organizes all known elements based by their properties?

• Reaction Table

• Chemistry Grid

• Elements Table

• Periodic Table

Which one describes a substance composed of only one type of atom?

• Compound

• Solvent

• Element

• Product

What is the name of a substance that accelerates a reaction but is not consumed?

• Product

• Catalyst

• Reactant

• Ion

What do we call atoms with an electric charge?

• Atoms

• Compounds

• Ions

• Molecules

What is a chemical bond?

• A type of laboratory instrument

• A force that holds atoms together

• A reaction result

• A part of the Periodic Table

What do we call the starting materials in a chemical reaction?

• Products

• Solvents

• Compounds

• Reactants

If a reaction releases heat, it is called:

• Endothermic

• Cool

• Exothermic

• Acidic

What measures how acidic or basic a solution is?

• pH

• Heat

• Color

• Mass