Study Chemistry Ch. 9 Flash Cards

 
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Chemistry Ch. 9

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what are the driving forces behind ionic reactions?
ionic reactions usually occur between two aqueous solutions, each containing a dissolved compound in an aqueous ionic state
in an ionic reaction, formation of an unstable product that decomposes releases what?
a gaseous product
in an ionic reaction, formation of an unionized product
water formed during an acid/base neutralization
in an ionic reaction, the of an insoluble solid product
precipitate
what scientific law requires that reactions be balanced?
the law of conservation of mass
what are the diatomic molecules?
hydrogen, nitrogen, fluorine, oxygen, iodine, chlorine, bromine
(bromine is a liquid and iodine is a solid under standard conditions)
if a substance that is soluble in water is produced it is referred to as...?
aqueous
a solid substance produced by an ionic reaction in a liquid medium
precipitate
a chemical change in which there is an exchange of ions between two compounds is what reaction?
ionic/double-replacement
what should be consulted to be sure the reaction will occur?
metal activity series
a chemical change in which a free element replaces and releases another element in a compound is what type of reaction?
single-replacement
if the change is caused by the flow of an electric current it is called ????
electrolysis
if the change is caused by heat supplied to the reaction, the Greek symbol ???? is often written below the arrow in an equation
delta (triangle)
a chemical change in which two to more substances combine to form a more complex substance is what reaction?
composition
a change in which a substance is broken down into simpler substances
decomposition
a number written just to the left of a formula
coefficient
the symbol for the word "yields" in a chemical change is a(n)...?
arrow
a chemical change can be represented by means of a written statement called...?
chemical equation
another name for a chemical change is...?
chemical reaction
reaction in which energy is released for the reaction to occur
exothermic reaction
reaction in which energy is absorbed for the reaction to occur
endothermic reaction
a chemical that is necessary for the reaction to occur (can speed it up or cause it to occur at a different temperature) but it is not itself changed by the reaction
catalyst
type of equation that stresses the reaction and production of ions
net ionic equation
substances that exist as results of a chemical reaction are...?
products
the expression A+B -->/<-- C+D represents what type of reaction?
reversible reaction
the expression 6H20 may mean either 6 molecules of water or 6 ???? of water
moles
in the equation for an endothermic reaction, the energy term appears on the ???? side of the arrow
left
the symbols or formulas for the ???? are omitted in writing net ionic equations
spectator ions
a precipitate is a(n) ??? that appears as the result of a chemical change
solid (insoluble)
the substances whose formulas appear on the left side of the arrow in a chemical reaction are known as the...?
reactants
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