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53 Cards in this Set
- Front
- Back
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Celestial
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objects that refer to the sky... (to keep track of time from the sun)
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the moon
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is the reflection of the sun's light toward our direction
light minutes away |
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Stars
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light years away
have own energy sorce |
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Electromagnetic Waves
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waves of radiation that are characterized by electric and magnetic fields
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Work
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the result in any change in energy
joules or calories |
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Kinetic Energy
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energy of motion
KE= 1/2MV(square) |
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Potential Energy
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PE= mgh
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Law of Conservation Energy
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the theory that energy is never lost but it is only transferred back and forth between KE and PE
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Matter
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anything that takes up space
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Mass
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the quantity of matter an object has
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Protons
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positively charged subatomic particles found in the nucleus of an atom
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Elements
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substances that cannot be broken into simpler types of matter
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Atom
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smallest part of an element
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Atomic Number
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the number of protons in the nucleus of an atom
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Neutrons
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neutral subatomic particles found in the nucleus of an atom
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Neutrons
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neutral subatomic particles found in the nucleus of an atom
do not contribute to charge |
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Electrons
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negatively charged subatomic particles found in various energy levels around the nucleus
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Chemical Reaction
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is when there is an imbalance in the charge of an atom
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Ion
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is when there is an imbalance in the charge of an atom
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Mass Number
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total number of protons and neutrons found within the nucleus of an atom
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Atomic Mass
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the average mass of all of the known isotopes of an element
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Isotopes
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atoms with the same number of protons but different numbers of neutrons
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Catalysts
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control the ate of chemical reactions
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Atomic Radii
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as filled energy shells increases the atomic radii increases
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Ionization Energy
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the energy required to completely remove and electron from an atom
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Period on Table of Elements
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longitude
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Group on Table of Elements
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horizontal
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Enzymes
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act as catalysts. Found in proteins.
highly selective |
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Globular proteins
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proteins that are water soluble
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Red Litmus Paper indicates?
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acidic
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Metabolic Pathways
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chemical reactions with a cell (depends on needs of cell)
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Blue Litmus paper indicates?
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basic solution
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Covalent
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shares electrons
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Ionic
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attractions
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Organic Chemistry
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study of hydrocarbon structure
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Metalloids
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posses a mixture of metallic and nonmetallic properties
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Metallic Ion
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cation (positive ion)
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Nonmetallic ion
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anion with negative ion
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Reduction
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the acceptance of an electron (negative)
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Oxidation
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electron donation to produce a more positive ion
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Oxidation Reduction Reaction
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combustion, photosynthesis, metabolism
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Glucose
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C6 H12 O 6
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Polar Molecule
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posses both negative and positive atomic structure
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Electrolysis
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the use of electric current to drive the breakdown of a molecule
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Kelvin
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add 273 to C
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Anabolic
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larger molecules
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Catabolic
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smaller molecules
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Solid
(volume and shape) |
fixed shape and volume
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Liquid
(volume and shape) |
fixed volume and changing shape
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Gas
(volume and shape) |
changing volume and changing shape
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Latent Heat
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the amount of heat needed to transform between solid, liquid and gas
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Vaporization
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liquid to a gas
Heat of vaporization= M x L |
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Evaporation
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makes rain clouds....
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