it is expected that a chemical reaction will occur when copper metal is combined with aqueous zinc sulfate. explain why there will be no reaction when zinc metal and aqueous copper sulfate solution are combined. identify the anode and the cathode, assuming a voltaic cell is constructed. note: be careful in the calculation of the standard cell potential ( eo cathode - eo anode). do not change the sign of the given reduction potential. the sign is already taken care of using the formula for calculating the standard cell potential.
standard reduction potential: cu2+(aq) + 2e- > cu(s) eo = -0.34 v
zn2+(aq) + 2e- > zn(s) eo = -0.76 v
standard cell potential = eo cathode - eo anode
although , combination of the reactants do not result in voltaic cells, it can be predicted if the reaction is spontaneous, based on the standard reduction potential.

= +ve, reaction is spontaneous

= -ve, reaction is non spontaneous

= 0, reaction is in equilibrium

Case 1: when copper metal is combined with aqueous zinc sulfate.

Here copper is undergoing oxidation ad thus acts as anode and zinc is undergoing reduction , thus acts as cathode.

= standard electrode potential =

Where both are standard reduction potentials.

Thus as is negative , the reaction is non spontaneous.

Case 2: when zinc metal and aqueous copper sulfate solution are combined.

Here zinc is undergoing oxidation ad thus acts as anode and copper is undergoing reduction , thus acts as cathode.

= standard electrode potential =

Where both are standard reduction potentials.

Thus as is positive , the reaction is spontaneous.

answer: e.   sour taste

explanation: acids are those substances which dissociates in water to give ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. acids are sour in taste. example: hcl

bases are those substances which dissociates in water to give ions or accepts ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. bases are bitter in taste. bases are slippery in nature.

my dad did alot of meth and ace cheeks