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Which of these reactions are acid-base reactions?

Which of these reactions are acid-base reactions?-example-1
User Cusejuice
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Answer:

The fifth answer choice (NH3 + H2O = NH4+ + OH-)

Step-by-step explanation:

An acid-base reaction occurs when an acid and base combine, and the acid, (which is H2O in this case) "donates" a proton, or an H+ to the base. In this reaction, H2O gave one of its H+ to NH3, to make NH4+ and OH-. NH4+ now has a positive charge because it gained a positive ion, while OH- now has a negative charge because it gained a negative ion.

User Rick Suggs
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