86. Which of following structures presents the most stable conformation of cis-1-ethyl-2-isopropylcy
87. Determine the most acidic compound shown below. (A) A (B) B (C) C (D) D(E) There is not enough i
88. Peramivir has shown to be effective against the influenza B virus. Rank following nitrogen atoms
89. Arrange the following arenes in the decreasing reactivity toward HNO3/H2SO4.(a) PhH (b) PhCl (c)
90. Which compound exhibits only two signals in its 1H NMR spectrum, a triplet and a quintet?(A) BrC
1. One mole of an ideal gas undergoes an isothermal reversible expansion at 300 K.During this proces
2. Which of the following statements about ligands, d-block metals, and coordinationcomplexes is cor
3. Consider 1.0 mole of an ideal gas contained in a 2.0 L bulb at 27℃. This bulb isconnected to a 10
4. Compound X, like most substances, exhibits only three phases: solid, liquid, andvapor. The triple
5. Given the following half-reactions and associated standard reduction potentials:Calculate the sta
6. How many of the following statements are correct?I. All the group 13 elements are metals.II. Alka
7. Given the following eleven gascous molecules: Which of the following statements about these molec
8. Ammonium benzoate is a salt formed from ammonia (NH3) and benzoic acid(C6H5COOH). Calculate the p
9. Yellow phosphorus (P4) undergoes disproportionation in NaOH(aq) to producePH3 and NaH2PO2. If 16.
10. Consider the titration of 50.0 mL of 0.100 M NaH2PO4(aq) with 0.100 MNaOH(aq). For H3 PO4, = 7.5
11. Element X has only two isotopes, 1 and 2, and its atomic weight is y.33 u. Of thefollowing combi
12. Which of the following molecular formulae has the most structural isomers, allcontaining a hydro
13. Which of the following statements about the dominant Lewis structures of is correct?(A) ClO obey
14. Which of the following statements about the van der Waals equation is incorrect?(P+■)(V-□)=nRT(A