Acid hydrolysis of N-methylbutyramide in water and hydrochloric acid with heat produces. a. Butyric acid and methylammonium chloride.
b. Butanoic acid and ammonium chloride.
c. Butanoate and methylamine.

i'm not sure

explanation:

i'll try whatever you got

the density of gold = 19.3 g/cm3

the relation between density and mass and volume is

density = mass / volume

given :

mass of gold = 13 g

density = 13g / volume = 19.3

volume = 13 /19.3 = 0.67 cm^3

thus volume of gold nugget = 0.67 cm^3

i think it's c. if you look search electronic symbol on google and then click on wiki it shows you a