Why do you think that most textbooks do not consider a hydrogen bond to be an example of a van der Waals force?

Rank the following three compounds in order of decreasing basicity. NH2 NH₂ NH2 NO2 I II III A) II > I > III B) III II I C) III > I > II D) I > II > III

Atoms A and B interact to form a compound, AB2. When measured, atom A has a partial negative charge and atom B has a partial positive charge. From this information, we can conclude what? Select only ONE answer choice. Note: - means "approximately equal to" , A > B means "A is greater than B" , and A B: AB2 is hydrophilic Not enough information to answer the question

Which comparison of atomic radii is correct?   Question 9 options:   Na < Na+   Na < F–   F > F–

Using the bond dissociation energy table from Brightspace, calculate the enthalpy change of the following reaction: HO. + HBr Please enter your response. Submit Br + H₂O

What three important properties do catalyst have?

Using collision theory, indicate which of the following statements regarding physical nature of the reactants is true: a) physical nature of reactants                               The physical nature of reactants does not influence the rate of reaction because reactions happen only on the molecular level. Solids, liquids or gases all influence the rate of reaction the same because they are all in the physical state. Solid state reactants react faster if the particle sizes are larger because reactions occur at the boundary surface with direct contact. Gaseous-state reactions are faster than liquid-state or solid-state reactions because collisions between reactants are more frequent.