Which of the following molecules has a dipole moment?
so3 ccl4 pf3
a.) so3 and ccl4 only
b.) ccl4 only
c.) pf3 only
d.) so3, ccl4, and pf3

Cr(oh)3 -> cr(3+) + 3oh-

6because i no yea yea

Heat is involved in chemical change in two ways; chemical changes either result in heat being added to or removed from an object, and chemical changes require a certain amount of heat before they can take place.

Answer is: the equilibrium  shifts toward the reactants, to the left side of chemical reaction.it is because lead(ii) nitrate dissociates in water: pb(no₃)₂ → pb²⁺(aq) + 2no₃⁻(aq).according to lechatelier's principle, the position of equilibrium moves to counteract thechange (more lead cations, common ion), the position of equilibrium will move so that the concentration ofproducts decrease and concentration of reactants of chemical reaction increase.read more on -