If the length of a fully extended chain length for a polymer molecule is 100 nm, and the average end-to-end distance square = 200 nm2, calculate the equivalent Kuhn segment length and number of Kuhn segments?

It is a product

In any atom of any element, you will find protons and neutrons in the nucleus of any atom 

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 -