When the following solutions are mixed together, what precipitate (if any) will form?

Question

(Type your answer using the format Pb3(PO4)2 for Pb3(PO4)2. If no precipitate forms, enter 'none'.)
(a) FeSO4 (aq) + KCl (aq)
(s)
(b) Al(NO3)3 (aq) + Ba(OH)2 (aq)
(s)
(c) CaCl2 (aq) + Na2SO4 (aq)
(s)
(d) K2S (aq) + Ni(NO3)2 (aq)
(s)

Answer 1

(a) None
(b) Al(OH3)(s)
(c) CaSO4(s)
(d) NiS(s)

Answer 2

(a) FeCl2
(b) Al(OH)3~slighly soluble but every class i've had counts this as insoluble
(c) CaSO4
(d) NiS~also slightly soluble

Answer 3

properly, it quite relies upon on your acid for a ideal answer. in spite of the undeniable fact that, baking soda is your complication-unfastened "base" and every time you combine a "base" with an "acid" you wind up with water (H2O) and a salt. that's not unavoidably your table salt, yet any given salt (based on your acid). this form of reaction is named a "neutralization reaction" because of the fact the backside and acid neutralize one yet another.