1 .		Identify the following as fundamental, subatomic particles: [Hint]
2 .		The branch of science that concerns itself with the structure of matter is: [Hint]
3 .		The size of the very largest atom is: [Hint]
4 .		A(n) ________are atoms whose nucleus contain different numbers of neutrons. [Hint]
5 .		The ______ is approximately equal to the number of protons and neutrons. [Hint]
6 .		To maintain homeostasis in the human body, the normal pH range of the blood must remain at: [Hint]
7 .		The pH of a solution indicates the concentration of hydrogen ions it contains. How would you classify a solution in which the pH = 2.1? [Hint]
8 .		Atoms that have a positive (+) charge are called: [Hint]
9 .		______ is considered a weak but important force that may affect the shapes and properties of molecules. [Hint]
10 .		The chemical notation 2H20 indicates: [Hint]
11 .		Stored energy is also known as: [Hint]
12 .		Which type of chemical reaction results in the reacting molecules being shuffled around? [Hint]
13 .		Enzymes are: [Hint]
14 .		The following are examples of organic compounds: [Hint]
15 .		Proteins consist of: [Hint]
16 .		Which steroid is important in the structure of cellular membranes, but in high concentration can adversely increase the risk of a heart attack? [Hint]
17 .		Organic catalysts made by a living cell to promote a specific reaction are called: [Hint]
18 .		The major difference between inorganic and organic compounds is that inorganic compounds are usually: [Hint]
19 .		The four major classes of organic compounds are: [Hint]
20 .		The ability of water to maintain a relatively constant temperature and then prevent rapid changes in body temperature is due to its: [Hint]
21 .		The nucleus of an atom contains: [Hint]
22 .		One of the most common cations in the human body is: [Hint]
23 .		Proteins perform the following functions: [Hint]
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