A student found that 3 grams of ammonia gas formed 3 grams of solid ammonia when the temperature was lowered enough. Why did the solid ammonia and the ammonia gas have the same
mass?

a gas can have the same weight as a solid

Explanation:

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:

zfoods? ok, pressure is used to keep the heat inside and to keep the food perfect.