Precipitation reactions Flashcards
1
Q
a precipitation reaction is
A
a reaction in which an insoluble solid is one of the products
2
Q
the test for CO2 using limewater is an example of a
A
a precipitation reaction
3
Q
the chemical test of co2, with an equation is
A
- pump the co2 gas through limewater, and the limewater will go cloudy
- Ca(OH)2(aq) + CO2(g) ===} CaCO3(s) + H2O(l)
4
Q
the presence of sulfate ions can be shown by adding
A
barium ions, usually from barium chloride or barium nitrate.
this forms a white precipitate of barium sulfate
5
Q
the presence of halide ions can be shown by the addition of
A
silver ions from silver nitrate
