A) Cu2+ + Ni => Cu + Ni2+ B) Cu + Ni => Cu2+ + Ni2+ C) Cu2+ + 2Ni => Cu + 2 Ni2+ D) 2 Cu2+ + Ni => 2 Cu + Ni2+
A) Cu + Fe => Cu2+ + Fe2+ B) Cu2+ + 2Fe => Cu + 2 Fe2+ C) 2 Cu2+ + Fe => 2 Cu + Fe2+ D) Cu2+ + Fe => Cu + Fe2+
A) Cu2+ + 2Pb => Cu + 2 Pb2+ B) Cu2+ + Pb => Cu + Pb2+ C) 2 Cu2+ + Pb => 2 Cu + Pb2+ D) Cu + Pb => Cu2+ + Pb2+
A) Cu2+ + 2 Zn => Cu + 2 Zn2+ B) Cu + Zn => Cu2+ + Zn2+ C) Cu2+ + Zn => Cu + Zn2+ D) 2 Cu2+ + Zn => 2 Cu + Zn2+
A) Ag+ + 2 Fe => Ag + 2 Fe2+ B) Ag + Fe2+ => Ag2+ + Fe C) Ag+ + Fe => Ag + Fe2+ D) 2 Ag+ + Fe => 2 Ag + Fe2+
A) Ag+ + Ni => Ag + Ni2+ B) Ag+ + 2 Ni => Ag + 2 Ni2+ C) 2 Ag + Ni2+ => 2 Ag2+ + Ni D) 2 Ag+ + Ni => 2 Ag + Ni2+
A) 2 Ag+ + Zn => 2 Ag + Zn2+ B) Ag+ + 2 Zn => Ag + 2 Zn2+ C) Ag + Zn2+ => Ag2+ + Zn D) Ag+ + Zn => Ag + Zn2+
A) Ag + Pb2+ => Ag2+ + Pb B) Ag+ + 2 Pb => Ag + 2 Pb2+ C) Ag+ + Pb => Ag + Pb2+ D) 2 Ag+ + Pb => 2 Ag + Pb2+
A) H+ + 2 Fe => H2 + 2 Fe2+ B) H2 + Fe2+ => 2 H+ + Fe C) 2 H+ + Fe => H2 + Fe2+ D) H+ + Fe => H2 + Fe2+
A) H+ + Pb => H2 + Pb2+ B) H+ + 2 Pb => H2 + 2 Pb2+ C) 2 H+ + Pb => H2 + Pb2+ D) H2 + Pb2+ => 2 H+ + Pb
A) H+ + 2 Ni => H2 + 2 Ni2+ B) H+ + Ni => H2 + Ni2+ C) 2 H+ + Ni => H2 + Ni2+ D) H2 + Ni2+ => 2 H+ + Ni
A) H+ + Zn => H2 + Zn2+ B) H2 + Zn2+ => 2 H+ + Zn C) 2 H+ + Zn => H2 + Zn2+ D) H+ + 2 Zn => H2 + 2 Zn2+
A) Pb2+ + Zn => Pb + Zn2+ B) 2 Pb2+ + Zn => 2 Pb + Zn2+ C) Pb2+ + 2 Zn => Pb + 2 Zn2+ D) 2 Pb + Zn2+ => 2 Pb2+ + Zn
A) 2 Pb2+ + Ni => 2 Pb + Ni2+ B) Pb2+ + 2 Ni => Pb + 2 Ni2+ C) 2 Pb + Ni2+ => 2 Pb2+ + Ni D) Pb2+ + Ni => Pb + Ni2+
A) Pb2+ + 2 Fe => Pb + 2 Fe2+ B) 2 Pb2+ + Fe => 2 Pb + Fe2+ C) 2 Pb + Fe2+ => 2 Pb2+ + Fe D) Pb2+ + Fe => Pb + Fe2+ |