Problem 34
Identify each of the following compounds as organic or inorganic: a. \(\mathrm{Na}_{2} \mathrm{SO}_{4}\) b. \(\mathrm{CH}_{2}=\mathrm{CH}_{2}\) c. \(\mathrm{Cr}_{2} \mathrm{O}_{3}\) d. \(\mathrm{C}_{12} \mathrm{H}_{22} \mathrm{O}_{11}\)
Problem 35
Match the following physical and chemical properties with potassium chloride, KCl, used in salt substitutes, or butane, \(\mathrm{C}_{4} \mathrm{H}_{10}\), used in lighters: a. melts at \(-138^{\circ} \mathrm{C}\) b. burns vigorously in air c. melts at \(770^{\circ} \mathrm{C}\) d. contains ionic bonds e. is a gas at room temperature
Problem 36
Match the following physical and chemical properties with octane, \(\mathrm{C}_{8} \mathrm{H}_{18}\), found in gasoline, or magnesium sulfate, \(\mathrm{MgSO}_{4}\), also called Epsom salts: a. contains only covalent bonds b. melts at \(1124^{\circ} \mathrm{C}\) c. is insoluble in water d. is a liquid at room temperature e. is a strong electrolyte
Problem 43
Draw the condensed structural formula for each of the following molecules: a. 3 -ethylhexane b. 2,3 -dimethylpentane c. 1,3 -dichloro- 3 -methylheptane
Problem 44
Draw the condensed structural formula for each of the following molecules: a. ethylcyclopropane b. methylcyclohexane c. isopropvlcvclopentane
Problem 46
Write a balanced equation for the complete combustion of each of the following: a. heptane \(\mathbf{b} . \mathrm{HC} \equiv \mathrm{C}-\mathrm{CH}_{2}-\mathrm{CH}_{3}\) c. 2 -methylpropane d. \(\mathrm{CH}_{3}-\mathrm{CH}_{2}-\mathrm{CH}_{2}-\mathrm{CH}_{3}\)
Problem 49
Match each description with a term from the following list: alkane, alkene, alkyne, alcohol, ether, aldehyde, ketone, carboxylic acid, ester, amine, amide, functional group, isomers. a. an organic compound that contains a hydroxyl group bonded to a carbon b. a hydrocarbon that contains one or more carbon-carbon double bonds c. an organic compound in which the carbon of a carbonyl group is bonded to a hydrogen d. a hydrocarbon that contains only carbon-carbon single bonds e. an organic compound in which the carbon of a carbonyl group is bonded to a hydroxyl group f. an organic compound that contains a nitrogen atom bonded to one or more carbon atoms
Problem 50
Match each description with a term from the following list: alkane, alkene, alkyne, alcohol, ether, aldehyde, ketone, carboxylic acid, ester, amine, amide, functional group, isomers. a. organic compounds with identical molecular formulas that differ in the order the atoms are connected b. an organic compound in which the hydrogen atom of a carboxyl group is replaced by a carbon atom c. an organic compound that contains an oxygen atom bonded to two carbon atoms d. a hydrocarbon that contains a carbon-carbon triple bond e. a characteristic group of atoms that make compounds behave and react in a particular way f. an organic compound in which the carbonyl group is bonded to two carbon atoms
Problem 51
A tank on an outdoor heater contains \(5.0 \mathrm{lb}\) of propane. a. Write the equation for the complete combustion of propane. b. How many kilograms of \(\mathrm{CO}_{2}\) are produced by the complete combustion of all the propane?
Problem 52
A butane fireplace lighter contains \(56.0 \mathrm{~g}\) of butane. a. Write the equation for the complete combustion of butane. b. How many grams of oxygen are needed for the complete combustion of the butane in the lighter?
