Answers
The masses of carbon dioxide and hydrogen in samples of four pure hydrocarbons are given
above. The hydrocarbon in which samples has the same empirical formula as propene, C3H6? -
✔✔Sample B
Three substances were studied in the laboratory, and the data in the table above were
collected. Based on the date, which of the following shows the type of bonding in each
substance? - ✔✔Network covalent, Metallic, Ionic
Based on the information in the table above, which of the compounds has the highest boiling
point, and why? - ✔✔Propanoic acid, because it can form intermolecular hydrogen bonds
A 1.0 L sample of a pure gas is found to have a lower pressure than that predicted by the ideal
gas law. The best explanation for the observations is that the molecules of the gas. - ✔✔Are
attracted to each other and do not exert as much force on the container walls as they would if
they had no mutual attractions.
Equal volumes of solutions in two different vessels are represented above. If the solution
represented in vessel 1 is KCL, then the solution represented in vessel 2 could be an aqueous
solution of - ✔✔CaCl2 with twice the molarity of the solution in vessel 1
A 20 mL sample of .5 M HC2H3O2 is titrated with .5 M NaOH. Which of the following best
represents the species that react and the species produced in the reaction? - ✔✔HC2H3O2 +
OH = C2H3O2 + H2O
The standard reproduction potentials for half-reaction related to the galvanic cell represented
above are listed in the table below... - ✔✔E= =.002 V