49 Consider a molecule with a molecular formula of C₁₀H₁₆. How many rings and π bonds are present in the molecule in total?(A)1(B)2(C)3(D)4(E)5

35 A reaction that has a very low activation energy exhibits which of the following characteristics?(A)The rate is very sensitive to temperature.(B)The rate does not change significantly with temperature.(C)It must be second order.(D)It produces a curved Arrhenius plot.(E)It must be first order.