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marssik2250
@marssik2250
June 2021
2
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Ну хоть с этим помогите, пожалуйста
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MrZigmund
..........................
0 votes
Thanks 1
marssik2250
отлично
prevedd91
2KI + Pb(NO3)2 = 2KNO3 + PbI2↓
2K(+) + 2I(-) + Pb(2-) + 2(NO3)- = 2K(+) + 2(NO3)- +PbI2↓
2I- + Pb2- = PbI2↓
Na2SO4+Pb(NO3)2=PbSO4+2NaNO3
2Na(+) + (SO4)2- +Pb(2+) +(2NO3)- = PbSO4 + 2Na(+) + 2(NO3)-
(SO4)2- + Pb(2+) = PbSO4
Ba(OH)2 + Na2SO4 = BaSO4↓ + 2NaOH
Ba(2+) + 2OH(-) + 2Na(+) + SO4(2-) = BaSO4↓ + 2Na(+) + 2OH(-)
Ba(2+) + SO4(2-) = BaSO4↓
Pb(NO3)2+Ba(OH)2=Pb(OH)2↓+Ba(NO3)2
Pb(+) + 2NO3(-) + Ba(2+) + 2OH(-) =Pb(OH)2+ Ba(2+) + 2NO3(-)
Pb(+) + 2OH(-) = Pb(OH)2
↓
1 votes
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marssik2250
спасибо)
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Answers & Comments
2K(+) + 2I(-) + Pb(2-) + 2(NO3)- = 2K(+) + 2(NO3)- +PbI2↓
2I- + Pb2- = PbI2↓
Na2SO4+Pb(NO3)2=PbSO4+2NaNO3
2Na(+) + (SO4)2- +Pb(2+) +(2NO3)- = PbSO4 + 2Na(+) + 2(NO3)-
(SO4)2- + Pb(2+) = PbSO4
Ba(OH)2 + Na2SO4 = BaSO4↓ + 2NaOH
Ba(2+) + 2OH(-) + 2Na(+) + SO4(2-) = BaSO4↓ + 2Na(+) + 2OH(-)
Ba(2+) + SO4(2-) = BaSO4↓
Pb(NO3)2+Ba(OH)2=Pb(OH)2↓+Ba(NO3)2
Pb(+) + 2NO3(-) + Ba(2+) + 2OH(-) =Pb(OH)2+ Ba(2+) + 2NO3(-)
Pb(+) + 2OH(-) = Pb(OH)2↓