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37 Cards in this Set
- Front
- Back
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Pseudo science |
Claim without actual study to back it up |
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Anecdotal observation |
People concluding their is or isn't link between 2 things based on 1 or fewer observations |
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Element Trace |
Substance can't be broken down into other substances by chemical reaction Required in very small amounts, can't live without |
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Atom |
Smallest unit of matter, still retains properties of element |
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Atomic number |
Number of protons in atom |
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Mass Mass number |
Amount of matter in object Sum of protons and nuetrons |
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Isotopes Radioactive |
Element with differing number of nuetrons Nucleus decays |
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Isotopes Radioactive |
Element with differing number of nuetrons Nucleus decays |
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Electrons |
Only particle that bonds atoms, negative charge, outer shell must be full |
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Isotopes Radioactive |
Element with differing number of nuetrons Nucleus decays |
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Electrons |
Only particle that bonds atoms, negative charge, outer shell must be full |
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Ionic bonds |
One atom takes electron from another atom, positive charge gives up electron, negative charge takes electron |
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Covalent bonds |
2 atoms share one or more electrons, strongest bond |
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Covalent bonds |
2 atoms share one or more electrons, strongest bond |
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Hydrogen bond |
Share electrons, but not equally. Think water, weakest bond |
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Covalent bonds |
2 atoms share one or more electrons, strongest bond |
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Hydrogen bond |
Share electrons, but not equally. Think water, weakest bond |
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Reactants Products |
Starting materials Ending materials |
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4 properties of water |
Cohesion- molecules stick Temp moderation- heat Less dense solid- molecules spread out, less dense. Ice Good solvent- dissolve |
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4 properties of water |
Cohesion- molecules stick Temp moderation- heat Less dense solid- molecules spread out, less dense. Ice Good solvent- dissolve |
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Solution Solvent Solute |
-Liquid consisting 2 or more substances - dissolving agent, water - what is dissolved, salt |
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Acid Base |
-chemical releases hydrogen into solution -chemical removes hydrogen from solution |
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Acid Base |
-chemical releases hydrogen into solution -chemical removes hydrogen from solution |
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pH scale |
Measures amount of hydrogen in solution. Range 0-14 Acid low, base high |
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Organic compounds |
Carbon based molecules. Carbon, hydrogen, nitrogen, oxygen |
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Functional groups |
Groups of atoms directly involved in chemical reactions |
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Functional groups |
Groups of atoms directly involved in chemical reactions |
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Polymers Hydrolysis |
Formed through dehydration reaction To break with water, adding |
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Disaccharide Polysaccharide |
Double sugar Long chains of sugar, starch lycogen |
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Disaccharide Polysaccharide |
Double sugar Long chains of sugar, starch lycogen |
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Carbohydrates |
Sugars, monosaccharide simple sugars can't be broken down |
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Lipids Fats |
Hydrophobic Fats subgroup, fatty acid tails, triglyceride |
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Saturated fats Unsaturated fats |
Have maximum hydrogen bonds, solid fats, meats Less than maximum hydrogen, oils, liquids |
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Amino acids |
Consists of central carbon attached to carboxyl group, amino group, hydrogen atom, or side group (unique) 20 different ones Primary structure is list of amino acids in exact order |
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Polypeptide |
Not a protein Primary structure, secondary, tertiary, quaternary |
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Denature |
Temperature and pH changes cause proteins to change shape, lose 3-d shape |
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Nucleic acids |
DNA and RNA Have adenine, guanine, cystosine, thymine. RNA has uracil instead of thymine 5 carbon sugar, phosphate group, nitrogen base |
