Precipitation reactions Flashcards
Why do things precipitate out of solution?
Because they are strongly enough bonded that they are not able to be disrupted by the polarity of water. As such they remain non-polar and so become hydrophobic and fall out of the solution.
What is an example of an ionic compound that is not water soluble.
Silver Chrolide, AgCl
Do nitrates (NO_3) dissolve well or badly in water.
Nitrates are always anions in ionic compounds and dissolve very well in water
Why do we write every ionic compound dissolved in a solution out separately?
Because it doesn’t matter what form they were originally in, in solution they will be dissociated by the polar water molecules.
If some ionic compound combination of these ions (i.e., a cation with anion) is insoluble, it will form a precipitate.
What is the chemical symbol for Silver
Ag
What is the chemical symbol for Sodium
Na
