How does a catalyst work? using these
a. by increasing the temp. of a chemical reaction
b. by decreasing the pressure of a chemical reaction
c. by increasing the concentration of reactants in a reaction
d. by decreasing the activation energy of a reaction

answer: zinc is the substance which has a volume of 1.38 .

density is defined as the mass of an object per unit volume.

it can be calculated by dividing mass of a substance by its volume i.e.

si unit of density is kg per cubic meter and cgs unit of the same is gram per cubic centimeter.

now from the given data volume can be calculated by the formula .

hence, the volume of aluminium will be = which comes out to be 1.703 .

similarly, volume of zinc, chromium, and nickel will be 1.378 , 0.869 , and 0.356 respectively.

her affection for her parents makes her an especially sympathetic character.