Zadania z chemii IB HL

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Which statement explains the Lewis acid-base nature of the carbocation in this reaction? $\ce{C2H5+ + I- -> C2H5I}$

A. Lewis base because it accepts a pair of electrons B. Lewis base because it donates a pair of electrons C. Lewis acid because it donates a…

(i) Outline the way in which ammonia behaves as a Lewis base during the formation of the complex ion $\ce{[Ag(NH3)2]+(aq)}$ . (ii) Determine the pH at 298 K of an aqueous ammonia solution of concentration 0.180 $\mathrm{mol\,dm^{-3}}$ . Use section 1 of the data…

Which term cannot describe the chloride ion, $\ce{Cl-}$ ? A. Lewis base B. ligand C. Brønsted–Lowry acid D. nucleophile