We’re being asked to determine the conjugate base of the given acids.
Recall that the conjugate base of an acid is simply the compound formed when an acid loses a hydronium ion (H+). It's considered as a base because it can gain H+ to reform the acid.
Give the conjugate base for each of the following acids:
HCN, NH4+, HNO2, HF
A. H2CN+, NH3-, H2NO2+, H2F-+
B. CN+, NH3+, NO2+, F+
C. HCN-, NH3-, NO2-, F-
D. CN, NH3, NO2, F
E. CN-, NH3, NO2-, F-
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