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Definition
-All living and non-living things in the physical and natural universe are made up of atoms
-Atoms are made up of sub-atomic particles:
protons, neutrons, & electrons |
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-C,H,O,N,P,S
-Na, Mg, K, Ca, Cl |
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Definition
| Common elements found in organisms |
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Term
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Definition
| Sodium has 11 protons, 11 electrons, and 12 neutrons. Its atomic number is ______, while its atomic weight is ______. |
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| Isotopes differ in the number of___________. |
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| Weak bonds that form between water molecules or between the nucleotide bases of two strands of DNA are called ______ bonds. |
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-The polarity of water makes it a great solvent!
-Oxygen is among the most electronegative of all elements
-Water is a very polar molecule |
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Definition
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Definition
-Can be intra- or intermolecular
-Weak interaction
-Not as strong as a covalent bond
-Not limited to just water molecules
-Makes it possible for almost any charged or polar molecule to dissolve in water. |
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Definition
| Form between water molecules |
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Definition
| TRUE or FALSE: Electrons are pulled toward oxygen. |
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Definition
| Explain why a meniscus forms where water meets a solid surface |
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Definition
| Binding between like molecules |
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Definition
| Binding between unlike molecules |
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Definition
| TRUE or FALSE: The solid form of water is more dense than the liquid form |
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Definition
-a crystal lattice
-Molecules are evenly spaced |
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Definition
-Lacks the order of evenly spaced molecules
-Molecules can be closer together, thus more dense |
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Definition
| Amount of heat required to raise the temperature of 1 gram of substance by 1°C |
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| High heat of vaporization |
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Definition
| Energy required to change 1 gram of a substance from a liquid to a gas |
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Term
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Definition
| concentration of hydrogen ions (H+) |
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Term
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Definition
| One gives up a proton is a(n): |
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Term
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Definition
| One accepts a protone is a(n): |
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Definition
| TRUE or FALSE: Water can act as both an acid and a base |
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Definition
| Compounds that minimize fluctuations in pH |
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Definition
| What is the pH of pure water? |
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Definition
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| the number of protons in the nucleus |
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Definition
| How do you find the atomic number? |
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Term
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Definition
| How do you find the atomic weight? |
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