Which compounds are the bronsted- lowry bases in the equilibrium?
hc2o4- + h2bo3- < => h3bo3 + c2o4 2-?

a. h2bo3- and h3bo3
b. hc2o4- and h3bo3
c. hc2o4- and c2o4 ^2-
d. h2bo3- and c2o4 ^2-
e. hc2o4- and h2 bo3-

How are elements arranged in a periodic table

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