An arson investigator is called to a suspicious fire that destroyed a house. The arson investigator collects a sample of debris, which was found at the base of the structure, containing some accelerant used to start the fire. Once the investigator goes back to the lab and tests the sample, a purple flame is emitted from the sample. What metal was part of the accelerant used to burn the house?

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:

yes it is balanced