General Chemistry Questions & Answers

General Chemistry Questions & Answers 3 states of matter - CORRECT ANSWER - solid, liquid, gas absolute zero - CORRECT ANSWER - The coldest temperature, 0 Kelvin, that can be reached. It is the hypothetical temperature at which all molecular motion stops. Celcius - CORRECT ANSWER - Metric temperature scale on which water freezes at 0 degrees and boils at 100 degrees Celcius to Kelvin conversion - CORRECT ANSWER - K=C+273 chemical change - CORRECT ANSWER - A change in matter that produces one or more new substances chemical properties - CORRECT ANSWER - Characteristic that cannot be observed without altering the substance Chromatography - CORRECT ANSWER - A technique that is used to separate the components of a mixture based on the tendency of each component to travel or be drawn across the surface of another material. Compound - CORRECT ANSWER - A substance made up of atoms of two or more different elements joined by chemical bonds conservation of matter - CORRECT ANSWER - the principle stating that matter is not created or destroyed during a chemical reaction Crystallization - CORRECT ANSWER - a separation technique that results in the formation of pure solid particles of a substance from a solution containing the dissolved substance Distillation - CORRECT ANSWER - A process that separates the substances in a solution based on their boiling points Element - CORRECT ANSWER - A pure substance made of only one kind of atom element symbol - CORRECT ANSWER - the abbreviation of an elements name; 1 or 2 letters, first letter is always capitalized, second is never capitalized Energy - CORRECT ANSWER - the ability to do work or produce heat example of heterogeneous mixture - CORRECT ANSWER - salad example of homogeneous mixture - CORRECT ANSWER - air examples of chemical properties - CORRECT ANSWER - flammability and reactivity examples of physical properties - CORRECT ANSWER - Color, odor, mass, density, specific heat, malleability, ductility, conductivity, melting point, boiling point, magnetism...