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Topic 3: Chem React

Topic 3: Chemical Reactions

TermDefinition
colloid a mixture containing small, undissolved particles that do not settle out
suspension a mixture in which particles can be seen and easily separated by settling or filtration
solution a mixture containing a solvent and at least one solute that has the same properties throughout; a mixture in which one substance is dissolved in another
solvent the part of a solution that is usually present in the largest amount and dissolves a solute
solute the part of a solution that is dissolved by a solvent
solubility a measure of how much solute can dissolve in a given solvent at a given temperature
reactant a substance that enters into a chemical reaction
product a substance formed as a result of a chemical reaction
exothermic reaction a reaction that releases energy, usually in the form of heat
endothermic reaction a reaction that absorbs energy
law of conservation of mass the principle that the total amount of matter remains the same; regardless of any chemical or physical change
open system a system in which matter can enter from or escape to its surroundings
closed system a system in which no matter is allowed to enter or leave
synthesis reaction when two or more elements or compounds combine to make a more complex substance
decomposition reaction opposite of synthesis reaction where compounds break down into simpler products
replacement reaction one element replaces another element in a compound, or if two elements in different compounds trade places
synthetic created or manufactured by humans; not found occurring in nature
natural resource anything naturally occurring in the environment that humans use
polymer a long chain of molecules made up of repeating units
Created by: muellershauna
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