Ответы на вопрос:
₁ ₂ ₃ ₄ c₂h₆ → c₂h₅cl → c₄h₁₀ → co₂ → caco₃ 1. c₂ h₆ + cl₂ = c₂ h₅ cl + hcl 2. 2c₂h₅cl + 2na = c₄h₁₀ + 2nacl 3. 2c₄h₁₀ + 13o₂ = 8co₂ + 10h₂o 4. co₂ + cao = caco₃
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