Question

What types of observations would indicate to you that a chemical reaction occurred 3ooo 2. Two substances are mixed and a precipitate forms. How could you decide which one of the products is the precipitate? (Remember, a precipitate is an insoluble solid formed in a reaction.) Would a low solubility value or a high solubility value be associated with the substance that formed the precipitate? 3. Is the solution resulting from a "neutralization" reaction the same as pure water? Explain:

Answer 1

1942 12. 8L observations when a chemical reaction occured I las Change in state (like solid liquid) (b) change in colores : [cusou the resource] precipitate (69 formation of a precipitate (Pb(Nos) +2K1 —Pb'2_69) #KNU.] Cely Evolution of a gas. eg 2n +246e znlle (4) + H, 6917 112 (29) (ممو) 2 Let's say Ag Ng (silver nistrate solution) is . miseked with Potassium so dode (KP) , then Ag 1 (s) will be formed which will be a precipitate as it is solid state, Ay ng (02) + K1() - kno Caq) + Ay P () or(s) prapatate as Ay I is solid cu state. TITIT substance which is a precipitate will have leo solubility as it will be mor largely in undissolved / solid state only 3. Neutralisation reaction can be same, as pure water as acid and base completely reach with each other to form neutral water a HT to tho ( from aced from Base & water