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Chemical Reactions

CR

QuestionAnswer
the production of a gas indicates that a chemical reaction may be occuring
a solid appears (the production of a precipitate) indicates that a chemical reaction may be occuring
a change in temperature indicates that a chemicalreaction may be occuring
type of reaction in which heat energy is released to the environment exothermic reaction
type of reaction in which heat is absorbed from the environment endothermic reaction
an insoluble product of a chemical reaction precipitate
the starting material in a chemical reaction reactants
the substances produced by a chemical reaction product
energy stored within a molecule that can be released when the substance reacts chemical energy
what happens when a chemical reaction occurs atoms are rearranged
a reaction of at least two substances that form a new, more complex compound synthsis reaction
a reaction in which one compound reaks into at least two products decomposition reaction
the decomposition of a compound by an electric current electrolysis
a reaction in which a compound and oxygen burn combustion reaction
a reaction in which atoms of one eleent take the place of atoms of another element in a compound single displacement reaction
a reaction in which a gas, a solid precipitate, or water is fromed from the apparent exchange of ions between two compounds double displacement reaction
a reaction that occurs when electrons are transferred from one reactant to another reduction/oxidation reaction
the fragments of molecules that have at least one electron available for bonding radicals
the use of chemical formulas and symbols to show the reactants and products in a chemical reaction chemical equation
what must be true of a chemical equation must be balanced
what a balanced equation shows conservation of mass
matter cannot be created or destroyed in a chemical reaction law of conservation of matter
higher temperature will speed up a chemical reaction
large surface area will speed up a chemical reaction
higher concentration of reactants will speed up a chemical reaction
the use of a catalyst will speed up a chemical reaction
proteins that are catalysts for chemical reactions in living things enzymes
the state in which a chemical reaction and its reverse occur at the same time and at the same rate equilibrium
general synthesis reaction A + B ----> AB
general decomposition reaction AB ----> A + B
general single displacement reaction A + BC -----> AC + B
general double displacement reaction AB + CD ---> AD + CB
synthesis reaction two substances making one substance
decomposition reaction one substance making two or more substances
single displacement reation an element replaces another element from a compound
double displacement reaction similar elements in two different compounds switch places with each other
redox reaction one reactant loses electron and the other gains electron