Please help!

Which statement is NOT correct?

a) In an ionic compound, a metal and a non metal form a compound, and electrons are transferred from one to the other.

b) In an ionic compound, a metal and a polyatomic ion form a compound, and electrons are shared.

c) In both ionic and molecular compounds, valence electrons take part in bonding.

d) In a molecular compound, a non-metal and a non-metal form a compound, and electrons are shared

D is the answer

Explanation:

I'm pretty sure a molecular compound doesn't form between 2 non metals

...I think, but I can't remember

answer; ///i do believe that the correct answer is (b); ///particle composed of two or more atoms bonded together;

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: