I NEED HELP!! 1. Silver and nitric acid react according to the following balanced equation:
3 Ag(s) + 4HNO3(aq) → 3 AgNO3(aq) + 2 H2O(1) + NO(g)
A. How many moles of silver are needed to react with 80 moles of nitric acid?
B. From the amount of nitric acid given in Part A, how many moles of silver nitrate will be produced?
C. From the amount of nitric acid given in Part A how many moles of water will be produced?

adding or remove a gaseous reactant or product changes the concentrations. if the concentration of reactant or product is increased, the system will shift away from the side in which concentration was increased (i.e. if the concentration of reactants is increased, the system will shift toward the products. if more products are added, the system will shift to form more reactants). conversely, if the concentration of reactant or product is decreased, the system will shift toward the side in which concentration was decreased (i.e. if reactants are removed, the system will shift to form more reactants. if the concentration of products is decreased, the equilibrium will shift toward the products).

explanation:

particle   p is an electron and particle q is a neutron

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