Розставте коефіцієнти в рівняннях:
K + S = K2S
P + Na = Na3P
Ca + 02 = Ca0
Al + 02 = Al203
Ag20= Ag +02
Ba + HCI = BaCI2 + H2
Zn + H3Р04 = Zn3(P04)2 + H2
Al203 + HBr= AIBr3 + H20
KOH + H2S04 = K2S04 + H20
K + S = K2S
P + Na = Na3P
Ca + 02 = Ca0
Al + 02 = Al203
Ag20= Ag +02
Ba + HCI = BaCI2 + H2
Zn + H3Р04 = Zn3(P04)2 + H2
Al203 + HBr= AIBr3 + H20
KOH + H2S04 = K2S04 + H20
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Ответ:
K + S = K2S (2K + S = K2S)
P + Na = Na3P (3P + 6Na = Na3P)
Ca + O2 = CaO (2Ca + O2 = 2CaO)
Al + O2 = Al2O3 (4Al + 3O2 = 2Al2O3)
Ag2O = Ag + O2 (2Ag2O = 4Ag + O2)
Ba + HCl = BaCl2 + H2 (Ba + 2HCl = BaCl2 + H2)
Zn + H3PO4 = Zn3(PO4)2 + H2 (3Zn + 2H3PO4 = Zn3(PO4)2 + 3H2)
Al2O3 + HBr = AlBr3 + H2O (2Al2O3 + 6HBr = 2AlBr3 + 3H2O)
KOH + H2SO4 = K2SO4 + H2O (2KOH + H2SO4 = K2SO4 + 2H2O)
Объяснение: