Ответы на вопрос:
Ba(oh)2 + 2hcl = bacl2 + 2h2o ba²⁺+2oh⁻+2h⁺+2cl⁻ = ba²⁺+2cl⁻+2h₂o 2oh⁻+2h⁺ = 2h₂o oh⁻+h⁺ = h₂o na2co3 + 2hcl = 2nacl + h2o + co2↑ 2na⁺+co₃²⁻+2h⁺+2cl⁻=2na⁺+2cl⁻+h₂o+co₂↑ co₃²⁻+2h⁺ = h₂o + co₂↑ mg + 2hcl = mgcl2 + h2 koh + hno3 = kno3 + h2o k⁺+oh⁻+h⁺+no₃⁻=k⁺+no₃⁻+h₂o oh⁻+h⁺ = h₂o 2koh + znso4 = k2so4 + zn(oh)2↓ 2k⁺ + 2oh⁻ + zn²⁺ + so₄²⁻ = 2k⁺ + so₄²⁻ + zn(oh)₂↓ 2oh⁻ + zn²⁺ = zn(oh)₂↓ 2koh + so3 = k2so4 + h2o
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