16. representative elements are those found in the * a. s and p blocks b. d block c. s and d blocks d. d and f blocks 17. within the representative elements, atomic size generally * a. remains constant within a period b. increases as you move left to right across an energy level c. increases as you move down a group d. cannot be predicted 18. ions are charged particles formed from atoms. which of these would be true? * a. cations form when an atom gains electrons. b. cations form when an atom loses electrons. c. anions form when an atom gains protons. d. anions form when an atom loses protons.

The conventional equilibrium constant expression (kc) for the system below is: 2icl(s) ⇄ i2(s) + cl2(g) [cl2] ([i2] + [cl2])/2[icl] [i2][cl2]/[icl]2 none of the listed answers are correct [i2][cl2]/2[icl]

What human activity increases beach erosion?

Amines are good nucleophiles, even though they are neutral molecules. how would the rate of an sn2 reaction between an amine and an alkyl halide be affected if the polarity of the solvent is increased? amines are good nucleophiles, even though they are neutral molecules. how would the rate of an reaction between an amine and an alkyl halide be affected if the polarity of the solvent is increased? because both reactants in the rate-limiting step are neutral, the reaction will be faster if the polarity of the solvent is increased. because both reactants in the rate-limiting step are neutral, the reaction will be slower if the polarity of the solvent is increased. because both reactants in the rate-limiting step are neutral, the reaction will occur at the same rate if the polarity of the solvent is increased. request answer