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Definition
is anything that has mass and occupies space. In
turn, matter consists of substances that can be
either elements or compounds. |
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Definition
are pure substances: they can’t be broken down or decomposed
into two or more substances |
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Term
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Definition
| are chemical combinations of two or more elements |
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Term
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Definition
Consist of even smaller particles called
protons, neutrons, and electrons.
Positive atoms are anions.
Negative atoms are cations. |
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Definition
| The number of protons in the nucleus. |
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Definition
The number of protons and neutrons added
together. |
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Definition
| Tiny particles with a negative charge. |
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Definition
| An atom of an element will contain a different number of neutrons. |
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Term
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Definition
Most common form of hydrogen.
One proton, no neutrons.
Atomic number is 1, weight is 1. |
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Term
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Definition
Less common hydrogen.
One proton, one neutron.
Atomic number is 1, weight is 2. |
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Definition
One proton, 2 neutrons.
Atomic number is 1, weight is 3. |
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Definition
| A particle composed of 2 or more atoms untied by a chemical bond. |
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Term
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Definition
| Ionic bond, covalent bond, hydrogen bond. |
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Term
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Definition
| Formed when one atom transfers an electron from its outer shell to another atom. |
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Definition
| Compounds that ionize in water and create a solution capable of conducting electricity. |
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Definition
| When 2 atoms share one or more pairs of electrons to fill outer shell. |
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Definition
| A weak attraction between slightly positive hydrogen atom in one molecule with a slightly negative oxygen or nitrogen atom in another. |
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Definition
| The capacity to do work: to put matter into motion. |
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Definition
| Energy stored in the bonds of molecules |
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Definition
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Definition
| The sum of all the chemical reactions in the body |
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Definition
This involves breaking down complex compounds (such as large food molecules) into simpler
ones. |
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Term
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Definition
| This involves building larger and more complex chemical molecules (such carbohydrates,lipids, proteins, and nucleic acids) from smaller subunits. |
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Term
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Definition
| Can go in either direction under different circumstances. |
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Term
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Definition
Synthesis- A + B -> AB
Decomposition- AB -> A + B
Exchange- AB + CD -> AC + BD |
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Definition
| The production of energy within cells. |
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Definition
| Any substance that releases a hydrogen ion when dissolved in water. |
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Definition
| Balance out acids by “accepting” excess hydrogen ions. |
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Term
pH Scale
(Power of Oxygen) |
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Definition
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Definition
| A diverse group of lipids that fulfill a wide variety of role |
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Definition
| Help form structure of cell membranes. |
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Term
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Definition
| The most abundant, and most important, organic compounds in the body. |
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