Укажите правильное выражение.

  1. M(Br₂) = 160 г·моль⁻¹
  2. Mᵣ(Br₂) = 160 г/моль
  3. Aᵣ(Br) = 80 а.е.м.
  4. mₐ(Br) = 80/а.е.м.

📝 Detailed explanation

M — молярная масса, измеряется в г/моль. Mr и Ar — безразмерные величины.
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