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8. Acids and bases

For each question choose the answer you consider to be the best.1. Which species act as Brønsted - Lowry acids in the following reactions?NH2−(aq) + H2O(l) ⇌ NH3(aq) + OH−(aq)CH3NH2(aq) + H2O(l) ⇌ CH3NH3+ (aq) + OH−(aq)I. NH3(aq)II. CH3NH3+ (aq)III. H2O(l)A. I and II onlyB. I and III onlyC. II and III onlyD. I, II and III2. Which is a Brønsted - Lowry conjugate acid/ base pair?

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