Precipitation reactions make insoluble salts (solids)
The solid is called a precipitate that turns or cloudy.
Precipitation reactions involve ions which have to be molten or in solution as they have to move and collide.
The two solutions form the precipitate.
An ionic equation includes all the state symbols and charges.
To test for sulfate ions
1) Add dilute HCL and barium nitrate.
2) A white precipitate will form
To test for halide ions
ADD DILUTE NJITRIC ACID AND LEAD NITRATE
1) Chloride= white precipitate of lead chloride
2) Bromide= cream precipitate of lead bromide
3) Iodide=yellow precipitate of lead iodide
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