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IPC VOCAB 20&21

CHAPTER 20&21

QuestionAnswer
chemical change what happens hwen two substances react to produce entirely different substances
physical change ice melting is an example of this kind of change
physical property the state, size, or shape of a substance
actual yield the amount of product that you can measure after a chemical reaction
limiting reactant the reactant that is in short supply for a chemical reaction
percent yield the ratio of actual yield to predicted yield times 100
ratio the numerical relationship between two objects or substances
predicted yield the amount of product that should be produced in a chemical reaction
balanced equation an equation with an equal number of atoms in the reactants and products
coefficient the 6 in 6H2O
subscript the 3 in CaCO-little3-
combustion reaction a reaction that is used to abtain energy from fuel
decomposition reaction AB -> A plus B
double-displacement reaction AB plus CD -> AD plus CB
polymer a large molecule with repeating units of smaller molecules
polymerization the process of attaching small molecule units together to make a large molecule
precipitate the insoluble product of a double- displacement reaction
single- displacement reaction AX plus B -> BX plus A
endothermic reaction a reaction that uses more energy than it produces
addition reaction A plus B -> AB
exothermic reaction a reaction that produces more energy than it uses
Created by: lbanana217