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18 Cards in this Set
- Front
- Back
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The smallest unit of life? |
Atoms |
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what does atoms consist of? |
Protons, neutrons, and electrons |
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Where does the protons & neutrons reside? |
Inside the nucleus |
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Atomic number |
The number of protons in an atom |
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The ____ in an atom is the total number of protons and neutrons in its nucleus. |
Mass number |
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What are isotopes? |
Atoms of the same whose nuclei contain different number of neutron |
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Atoms can combine through chemical reactions that create ____ |
Chemical bonds |
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What is a molecule? |
Any chemical structure consist of atoms held together by covalent bonds |
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A ____ is a chemical substance made up of atoms of 2 or more elements in a fixed proportion |
Compound |
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What are used to describe chemical compounds and reactions? |
Chemical notation |
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A ____ is a weak, but important, electrical attraction that can affect the shapes and properties of molecules. |
Hydrogen Bond |
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Ionic bond |
Results from the attraction between ions, atoms that have gained or lost electrons |
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The ____ ____ of a molecule is the sum of the atomic weights of its compound atoms |
Molecular weight |
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What includes fats oils & waxes? |
Lipids |
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What are the 5 important classes if lipid? |
1. Fatty Acids 2. Eicosanoids 3. Glycerides 4. Steroids 5. Phospholipids |
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____ Consists of 3 fatty acid molecules attached by dehydration synthesis to a molecule of____ |
Triglycerides, glycerol |
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What are the most important energy source for metabolical processes? |
Carbohydrates |
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What are the 3 major types of carbohydrates? |
Monosaccharides (simple sugar) Disaccharides Polysaccharides |
