Este no, đơn chức, mạch hở có CTPTTQ là

A, C_nH_2nO₂ (n ≥ 1).

B. C_nH_2nO₂ (n ≥ 2)

C. C_nH_2n-2O₂ (n  ≥ 2).

D. C_nH_2n+2O₂ (n ≥ 2).

\(\dfrac{1}{6}+\dfrac{-5}{7}\)\(:\) \(x=\)\(\dfrac{-7}{8}\)

\(\dfrac{-5}{7}:\) \(x=\dfrac{-7}{8}-\dfrac{1}{6}\)

\(\dfrac{-5}{7}\) \(:\) \(x=\)\(\dfrac{-25}{24}\)

\(x=\dfrac{-5}{7}:\dfrac{-25}{24}\)

\(x=\dfrac{24}{35}\)