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The smallest stable units of matter
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Atoms
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The three subatomic particles that are constituents of atoms are:
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Protons, neutrons, electrons
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The protons in an atom are found only
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In the nucleus
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The unequal sharing of electrons in a molecule of water is an example of:
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A polar covalent bond
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Chemical bonds created by electrical attraction between anions and cations are:
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Ionic bonds
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Decomposition reaction
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AB-->A+B
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The presence of an appropriate enzyme affects only the:
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Rate of a reaction
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Organic catalysts made by a living cell to promote a specific reaction are called:
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Enzymes
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The major difference between inorganic and organic compounds is that organic compounds are usually:
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Made up of carbon and hydrogen
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The four major classes of organic compounds are:
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Carbs, lipids, proteins, nucleic acids
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The ability of water to maintain a relatively constant temperature and the prevent rapid changes in body temperature is due to its:
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Large capacity to absorb heat
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The human body generates significant quantities of acids that may promote a disruptive:
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Decrease in pH
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A solute that dissociates to release hydrogen ions ad causes a decrease in pH is:
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An acid
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Of the following ionic compounds, the one that is least likely to affect the concentrations of H+ and OH- ions is:
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A neutral salt
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A carbohydrate molecule is made up of:
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Carbon, hydrogen, oxygen
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