Chem 3 FINAL ch7
if you had an aqueous mixture that contained Ag+, K=, and PB+2 cations, how many different solids could precipitate if a chloride solution was added ?
2
all of the following compounds are soluble in water Except ?
PbCl2
which of the following is NOT a sign of a chemical reaction ?
all of the above
which of the following compounds is INSOLUBLE ?
aluminum sulfide magnesium phosphate
when water is heated ,bubbles form in the water. Is this evidence of a chemical reaction? whY?
no, boiling water is a physical change
which of the following compounds are SOLUBLE
potassium carbonate aluminum sulfate
A reaction which forms a solid product is an example of a __
precipitation reaction
before a chemical equation can be written, one must know what ?
the symbols and formulas of all reactants and products
An aqueous solution is what ?
water with another compound dissolved in it
which of the following statements about balancing reactions is FALSE?
when coefficients are added the type of compounds is changed in the chemical reaction
which of the following is NOT evidence that a chemical reaction has occurred ?
(color change, solid formation, gas and emission of light) all of the above
a reaction which forms a gaseous product is an example of a __
gas evolution reaction
