Which set of balancing coefficients (in respective order) can be used to balance the
following reaction:
-- K (s) + __ H2SO3 (aq) --
-->
_K2SO3 (aq) + __H2
-
a) 1,2,2,1
b) 2.1.2.1
c) 1,2,1,2
d) 2,1,1,1