This is hardly organic chemistry.
Some reasons for pptn rxns.
1. A ppt is formed.
2. A gas is formed.
3. A weak electrolyte is formed.
You asked only about pptn so look at the equations and see if a ppt will form. Basically this requires that you know the solubility rules for compounds. Lastly, you need to know the colors of a ppt formed.
A. Adding NaOH gives Cu(OH)2.
B. Adding K2CO3 gives CuCO3.
C. Adding Pb(NO)2 gives PbCl2.
D. no ppt formed.
Most Cu compounds are blue, green, or blue/green in color. PgCl2 is white.
In which solutions will a white precipitate be observed when aqueous copper (ii) chloride is added to it?
A) Sodium hydroxide
B) Potassium carbonate
C) Lead (ii) nitrate
D) Magnesium Sulfate
Could someone tell me the ans and explain it to me, thk u!
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