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Gen Chem Chapter 4: Compounds and Stoichiometry
mcat gen chem
14
Chemistry
Undergraduate 4
07/09/2009

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Term
ionic compounds form from elements that
Definition
are likely to form ions
Term
molecular compounds form from the
Definition
combination of elements of similar electronegativities
Term
combination reaction & examples
Definition
two or more reactants form one product; combustion, formation, corrosion
Term
combustion:
Definition
solid burned in the presence of a gas *combination
Term
formation:
Definition
standard state into a single product *combination
Term
corrosion:
Definition
liquid or gas attacks a metal *combination

** must have a metal for a reactant
Term
decomposition reaction:
Definition
compounds breaks down into two or more substances
Term
single displacement & example
Definition
atom of one compound is replaced by an atom of another element, redox
Term
double displacement & example
Definition
elements from two different compounds displace each other to form two new compounds, neutralization, precipitation
Term
neutralization:
Definition
acid + base --> salt and water * DD rxn
Term
another name for double displacement reactions
Definition
metathesis rxns
Term
when the quantities of two reactants are given...
Definition
you are dealing with a limiting reactant problem!
Term
percent yield =
Definition
actual/theoretical
Term
specific gravity is
Definition
g/cm^3 or g/mL
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