8.3 – activity series & solubility rules. activity = ability of an element to react easier...
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8.3 – Activity Series & Solubility Rules
Activity = ability of an element to react easier an element reacts, the higher the
activity activity series
◦ list of elements organized according to activities◦ listed from highest activity to lowest
metals◦ greater activity = easier to lose electrons◦ i.e. easier to become a cation
nonmetals◦ greater activity = easier to gain electrons◦ i.e. easier to become an anion
used to predict whether single replacement reactions will occur
most active element is higher on list an element can replace anything below it
but not anything above it I will give you a copy of the activity series to
use on test
zinc and hydrochloric acid
calcium and lead (II) nitrate
copper and lithium sulfate
bromine and iron (II) chloride
Used to predict the formation of a precipitate in double replacement reactions
If a compound is listed as “insoluble”, “slightly soluble”, or “marginally soluble”, it will be written as a solid in reaction.
If a compound is listed as “soluble” it will be written as aqueous.
Basic solubility rules can be found on p. 427 of your book (I will give you a copy to use for the test)
Ammonium sulfide & cadmium nitrate
potassium sulfate & barium chloride
sodium nitrate & magnesium sulfate
nickel (II) chloride & lithium hydroxide
How to write formulas How to classify a reaction from the
reactants only◦ Synthesis, decomposition, and combustion
rxns always happen◦ Single replacements only occur if the
activity series says it will◦ Double replacements only occur if the
solubility rules says it will How to predict products How to balance reactions