Uri de: acid clului
faric hidroxid de sodiu, nitrat
pură, elibe
epurare a
Ag...
Chemistry, 06.05.2020 21:40 jabper5522
Uri de: acid clului
faric hidroxid de sodiu, nitrat
pură, elibe
epurare a
AgNO3
are (indus-
erimentul 1. Reacții ce decurg cu formare de precipitat
cumati într-o eprubetă 1-2 ml soluție de clorură de calciu (CaCl).
unati 3-4 picături soluție de nitrat de argint (AgNO3). Agitati
continutul eprubetei. Observați formarea unui precipitat alb si brîn-
Scrieti ecuațiile moleculară și ionică ale reacției de schimb ce
are loc
(EM) 2AgNO3 + CaCl2 = 2AgCl + Ca(NO3)2
(EIC) 2Ag+ + 2NO3 + C22+ + 2C1 = 2AgCl + Ca2+ + 2NO3
(EIR) &Ag + 8C1 = {AgCi (reducem coeficienții)
precipitat alb
CaCl2
2 ml
AGCH
cează. Va
c în calea
ută prin
Impuri
vasul de
Formulați concluziile.
ontul
Ronatii a doura ou dagaiarea unui az
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