A water molecule is a polar molecule because it has a slight positive charge at one end and a slight negative charge at the other end.

Particles formed from covalent bonding are called ions.

A chemical symbol is the abbreviated way to write a compound's name.

A chemical equation shows a chemical reaction using symbols instead of words.

An enzyme is an example of an inhibitor.

A chemical bond that occurs when atoms share electrons is a(n) __________ bond.

How many electrons are needed in the outer energy levels of most atoms for the atom to be chemically stable?

Elements in Group 1, the alkali metals, are very reactive because their atoms have _________ valence electrons.

How many total hydrogen atoms are present in a molecule of ammonium acetate, NH₄C₂H₃O₂?

What is the ratio of potassium atoms to oxygen atoms in K₂O?

A change in matter that makes a new substance is called _____.

Each substance to the right of the arrow in a chemical equation that is a new substance made as a result of the chemical reaction is a _____.

What is a solid in a liquid (looks similar to orange juice with pulp) called that forms as a result of a chemical reaction?

A chemical reaction in which energy is absorbed in the form of heat is called _____.

Chemical equations must be balanced because they describe how chemical reactions obey the principle of _____.

When two or more substances combine to form a more complex substance (ex. 2Mg + O₂ --> 2MgO), the process is called a _____.