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Which of the following is characteristic of a nuclear reaction? I. Electrons in

ID: 1021623 • Letter: W

Question

Which of the following is characteristic of a nuclear reaction? I. Electrons in atomic orbitals art involved in the breaking and forming of bonds II. Elements are convened from one 10 another III. Reaction rates are typically not affected by catalysts IV. Atoms are rearranged by the breaking and forming of chemical bonds a. I and II b. I, II, and III c. Ill and IV d. II and III e. I, II, III, and IV Based on the following options, select the substance with hydrogen in the + 1 oxidation state. a. KH b. CH_4 c. H_2 d. AlH_3 e. SrH_2 The systematic name for the compound represented below is a. 4.5-diethylheptane b. 3-propyl-4-ethylhexane c. 3-ethyl-4-propylhexane d. 3-methyl-4-propyylheptane e. 2-ethyl-4-propylhexane The equilibrium expression for the ionization of a weak monoprotic acid, HA, in water is: a. K_a = [HA]/[OH^-][H_3O^+] b. K_a = [OH^-[H_3O^+]/[HA] c. K_a = [H_30^+][HA]/[HA] d. K_c = [H_3O^+][A^-]/[HA] e. K_a = [HA]/[H_3O^+][A^-]

Explanation / Answer

33) b. I , II and III is the correct option because in the nuuclear reaction the elements are converted to other elements and the atomic orbitals take part in the bond formation and breakage and catalysyt does not affect the reactions

34) b CH4 because metal hydrides have hydrogen in -1 and H2 have 0 oxidation state

35) d. 3-methyl-4-propylheptane

36) d. Ka = [A-][H3O+] / [HA]

beccause HA + H2O ----------------> A- + H3O+

Keq = [A-] [H3O+] / [H2O] [HA]

where [H2O] is constant so Ka has aexpression as in the answer d

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