Why should he not use the 30-A fuse in the circuit designed for a 25-A fuse? Multiple choice answers (pick the right one):
A. The 30-A fuse will not allow enough current through the circuit
B. The 30-A fuse will burn out almost immediately because it is unable to carry as much current as the 25-A fuse
C. The 30-A fuse will allow too much current through the circuit and will overheat the circuit

Iwould you figure it out but you don't have a picture or in your question as to what the physical property you're looking for is

The answer is  d.  hydrogen 

  the volume of  0.220 m k2s    solution  required  to  completely  react with 175 ml  of 0.115m co(no3)2  calculate the moles  of co(no3)2 =  molarity x volume/1000175 x0.115/1000= 0.02  moleswrite  the reacting  equationk2s(aq)  +  co(no3)2  = 2 kno3(aq)  + cos(s)by  use  of mole ratio between k2s to co(no3)2 which  is  1: 1 the moles of k2s is therefore = 175  x0.115/1000= 0.02  molesvolume = moles/molarity=0.02/0.22=0.09  ml  of k2s