Chem Unit 1 Review: Intro to Chemistry

Front

What is the formula for glucose?

Back

C₆H₁₂O₆

Front

What is a chemical change?

Back

A process where substances combine or break apart to form new substances.

Front

What is the formula for water?

Back

H₂O

Front

What does the arrow in a chemical equation represent?

Back

A bond or the direction of a reaction.

Front

What do atoms combine to form?

Back

Molecules.

Front

What is the difference between an atom and a molecule?

Back

An atom is the smallest unit of an element, while a molecule is a group of two or more atoms bonded together.

Front

What is a covalent bond?

Back

A type of bond where atoms share electrons.

Front

What is a chemical formula?

Back

A representation of a substance using symbols for its constituent elements.

Front

What is the law of conservation of mass?

Back

Matter cannot be created or destroyed in a chemical reaction.

Front

What is a reactant?

Back

A substance that undergoes change in a chemical reaction.