Zadanie 31
Two acid-base equilibria are shown. Equation 1: HCN(aq) + H2O(l) ⇌ CN−(aq) + H3O+(aq) Equation 2: NH3(aq) + H2O(l) ⇌ NH4+(aq) + OH−(aq) Which option correctly describes the role of water in each forward reaction? A. In equation 1 water…
Amphiprotic species
Recognise species such as water and the hydrogencarbonate and hydrogensulfate ions that can both donate and accept a proton, write equations showing each acting as an acid and as a base, and distinguish amphiprotic from amphoteric.
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Zadanie 32
Which two species can act both as Brønsted–Lowry acids and as Brønsted–Lowry bases? A. H2CO3 and CO32− B. HCO3− and SO32− C. HCO3− and HSO3− D. H2SO3 and HSO3−