To draw a Lewis structure for a covalent compound, begin by calculating A, the available electrons, and N, the needed electrons.
what is N for silicon tetrachloride, SiCl4

( I know that the available amount is 32 but I can't figure out the needed amount)

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:

the answer is either b or c

ill try to . no promises tho.

explanation: