3 attempts left Check my work Select the single best answer. Which force opposes vaporization of...
Select the single best answer. What is the strongest interparticle force in a sample of H2SO4? ion―dipole forces hydrogen bonding forces ionic bonding forces ion―induced dipole forces dipole―dipole forces dispersion forces dipole―induced dipole forces
1 attempts left Check my work Select the single best answer. Which of the following does not represent a Lewis acid-base reaction? (a) H2O +H= H30+ (b) NH3 + BF3 = H3NBF3 (c) PF3 + F2 = PF5 (d) Al(OH)3 + OH = Al(OH)4 OO Type here to search
O points 1 attempts left Check my work What interactions are responsible for maintaining quaternary protein structure? Select all that apply O ionic bridges van der Waals forces hydrogen bonding O disulfide bonds peptide bonds
Consider the molecule below: o=s=o: Select ALL the intermolecular forces that are expected to be present between two of these molecules. Select as many answers as are applicable, however points will be deducted for incorrect guesses. Select one or more: Dispersion forces Dipole/dipole forces Hydrogen bonding Check What amount of thermal energy (in kJ) is required to convert 136 g of ice at -16 °C completely to water vapour at 217 °C? The melting point of water is 0°C and...
Select the single best answer. What is the strongest type of intermolecular force between solute and solvent in the following solution: C_6H_14 (l) in C_8H_18 (l)? metallic bonding hydrogen bonding dispersion forces
2 attempts left Check my work Report Select the single best answer. A portion of the 'H NMR spectrum of the amino acid phenylalanine is shown below. Why are eight lines observed for H, and H.? H السر Mr 383 3.00 3.55 13 5.70 Chemical shift (oppm) OH, and H) split each other into two quartets. OH, and H, are split by the five hydrogens of the aromatic ring. H, and H, split each other into doublets, and these are...
Identify the strongest intermolecular force in the compound KHSO4. Group of answer choices Ionic forces Dipole-dipole Hydrogen bonding Ion-dipole London dispersion forces
1 attempts left Check my work Select all that apply. Which of the following ionic compounds are soluble? Check all that apply. o NaOH O Cus Zn(NO3)2 O Ca(OH)2 Report problem Hint
1. Select the two compounds that are more likely to be a gas at room temperature (as opposed to a liquid). CH4 CH3OH C2H6 H2O 2. The separation of charges within a polar molecule is called a(n) ________. polar bond strong attraction dipole ionic bond dipole-dipole 3. Which of the following intermolecular forces best describes why nonpolar molecules like gasoline (C8H18) have only limited solubility in water? dipole-dipole ion-dipole Both dipole-dipole and induced dipole-induced dipole induced dipole-induced dipole dipole-induced dipole...
Which of the following intermolecular forces relies on at least one molecule having a dipole moment that is temporary? Select as many as are applicable however points will be deducted for incorrect answers. Select one or more: Dispersion force Ion-dipole force Hydrogen bonding Ion-induced dipole force Dipole-dipole force Dipole-induced dipole force