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Science vocabulary

Exploring Creation w/ Chemistry - vocabulary (E - G)

TermDefinition
Electromagnetic radiation Another term for light, including all wavelengths, both visible and not visible
Electromagnetic spectrum The total range of wavelengths of light that come from the sun
Electron One of the three particles that make up the atom - it is negatively charged and orbits the nucleus of the atom
Electron configuration A notation that lists the number of electrons that occupy each orbital in an atom
Electron-dot diagram Another name for a Lewis structure
Electronegativity A measure of how strongly an atom attracts extra electrons to itself
Element Any substance that cannot be decomposed into less massive substances
Empirical formula A chemical formula that tells you a simple, whole-number ratio for the atom in a molecule
Endothermic process A process that absorbs heat
Endpoint of the titration The point in a titration where the acid and base has completely reacted with each other, it is usually accompanied by an indicator's change in color
Energy The ability to do work
Energy diagram A diagram that shows the energy of the reactants, intermediate state, and products in a chemical reaction
Enthalpy of information (〖∆H〗_f) The ∆H of a formation reaction
Entropy A measure of the disorder that exists in any system
Equilibrium constant A value that describes the concentrations at which a reaction comes to equilibrium, varies with temperature.
Excess reactant The reactant or reactants that are left over at the end of a chemical reaction
Exothermic process A process that releases heat
Extrapolation Following an established trend in the data even though the is no data available for that region
Factor-label method A method of conversion using the multiplication of fractions
Fahrenheit A temperature scale defined so that water freezes at 32 degrees and boils at 212 degrees
Food calorie (Cal) 1,000 chemistry calories,(cal)
Formation reaction A reaction that starts with two or more elements and produces one compound
Freezing The process by which a substance changes from its liquid phase to its solid phase
Freezing-point depression When a solution is dissolved in a solvent, the freezing point of the solution will be lower than that of the pure solvent
Frequency The number of wave crests (or troughs) that pass a given point each second
Galvanic cell An electricity-producing cell that runs on a redox reaction
Gay-Lussac's Law The stoichiometric coefficients in a chemical equation relate the volumes of gases in the equation as well as the number of moles of substance in the equation
Graduated cylinder A device used for measuring the volume of liquids
Gram The metric unit of mass
Ground state The lowest possible energy state for a given substance
Created by: Autumn Fairall