Consider the bicarbonate ion, HCO3–. a. First, draw the complete Lewis dot structure for it. Since there is no way to type these structures into Blackboard, please show your work by writing it on the provided answer sheet. You do not have to type anything here (for this part), but be sure to submit your answer sheet as soon as possible after completing the exam.

B. By each polar bond in the previous part, draw a vector showing the dipole moment.

C. Finally, if the overall structure has a dipole moment, draw an additional vector indicating the direction. Please circle that vector to distinguish it from the ones marking the bonds. Hint: you may need to redraw your structure with proper VSEPR shape first.

adding or remove a gaseous reactant or product changes the concentrations. if the concentration of reactant or product is increased, the system will shift away from the side in which concentration was increased (i.e. if the concentration of reactants is increased, the system will shift toward the products. if more products are added, the system will shift to form more reactants). conversely, if the concentration of reactant or product is decreased, the system will shift toward the side in which concentration was decreased (i.e. if reactants are removed, the system will shift to form more reactants. if the concentration of products is decreased, the equilibrium will shift toward the products).

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there is none because earth is stationary and flat.

hydrocarbons are organic compounds that contain only hydrogens and carbons. they can be saturated (those which contain only carbon-carbon single bonds) or unsaturated (those which contain carbon-carbon double or triple bonds) in nature. hydrocarbons can undergo several reactions like substitution, elimination etc.  

on substituting one or more hydrogen atoms in hydrocarbon it results in the formation of haloalkane. as the halogen atoms are large compared to the carbon and hydrogen atoms, due to which the molecular weight increases and the bond become polar because of presence electronegative halogen atom and results in the increase in boiling point of the haloalkane.

thus, the correct option is (b) that is the boiling point of the new compound increases on substituting a hydrogen atom with a halogen in a hydrocarbon.