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A precipitate is an insouluable solid powder that is formed as a result of mixing two solutions. :)
When you mix two solutions, you can determine if there will be a precipitate by looking at all of the possible combinations of the different ions. From these differnt combnations you can check if any of them result in a insoluable compound. The insoluable compound will be the precipitate.
Double Replacement Reactions & Precipitates :)
Example: Li+1F-1 + Na+1Cl-1 = LiCl + NaF
You can determine the products of a double replacement reaction by finding out which combination from your solution is insoluble. Which makes it a precipitate. (:
Extra Practice- Test yourself (: Balance these equations: 1) In+3P-3 + Li+1F-1 2) K+1Cl-1 + Ca+2S-2 3) Is a precipitate soluable or insoluable? 4) During a double replacement reaction, do the: a. pos. and pos. ions combine b. neg. and neg. ions combine c. pos. and neg ions combine
Example: Silver nitrate solution with sodium chloride solution. Possible Combinations: - sodium chloride - sodium nitrate - silver chloride - silver nitrate *Silver chloride is an insoluble compound. *Silver chloride-Precipitate
Balancing Chemical Equations: Li+1Cl-1 + Mg+2S-2 = Li2S + MgCl2
Example: Be+2S-2 + Ca+2O-2 = BeO + CaS
When two positive ionic solutions are mixed, the positive and negitive ions sometimes swap parteners. This is a chemical reaction between two compounds called a double replacement reaction.
Balancing Chemical Equations: Al+3N-3 + Mg+2Se-2 = Al2Se3 + Mg3N2
Extra Practice Answers(: 1) InF3 + Li3P 2) K2S + CaCl2 3) Insoluable 4) C
Example: Silver Chloride is an insoluable combination of the solution Sodium Chloride.
poster yourself
By: Courtney Poletti (:
