Ethane, c2h6, has a boiling point of -89°c at standard pressure. ethanol, c2hsoh, has a much higher boiling point than ethane at standard pressure. at stp. ethane is a gas and ethanol is a liquid.

59 identify the class of organic compounds to which ethanol belongs.

60 a liquid boils when the vapor pressure of the liquid equals the atmospheric pressure on the surface of the liquid. based on table h, what is the boiling point of ethanol at standard pressure?

61 compare the intermolecular forces of the two substances at stp. [1]

Of the groups of elements below, which are most likely to gain electrons to become anions? a. alkali metal b. boron group c. halogen d. transition metal

Modern pennies are composed of zinc coated with copper. a student determines the mass of a penny to be 2.482 g and then makes several scratches in the copper coaling (to expose the underlying zinc). the student puts the scratched penny in hydrochloric acid, where the following reaction occurs between the zinc and the hcl (the copper remains undissolved): zn(s) + 2 hcl(aq) → h2(g) + zncl(aq)the student collects the hydrogen produced over water at 25 °c. the collected gas occupies a volume of 0.899 l at a total pressure of 79 j mmhg. calculate the percent zinc (by mass) in the penny. (assume that all the zn in the penny dissolves.)

How many moles of bromine are needed to produce 3.23 moles of potassium bromide