Some vitamins and dietary supplements are stored in opaque, darkened bottles to protect them from UV light because UV light would cause a
reaction. Which word could be used to describe UV light in this situation?
O A. Solvent
B. Enzyme
C. Catalyst
O D. Reactant

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:

oxygen, selenium, tellurium, and polonium.

they're all from the same group as sulfur (group 16).

the objects have the same charge is correct.

nathan lee