Q&A Hero

Physic

Q: Which of the following could be the molecular formula for an alkane? A) C4H4 B) C6H12 C) C3H5 D) C2H2 E) C7H16
Q: Which of the following could be the molecular formula for an alkane? A) C7H7 B) C9H18 C) C4H7 D) C3H4 E) C2H6
Q: Compounds that have the same molecular formula but different structural formulas are called structural, or constitutional, A) isomers. B) derivatives. C) congeners. D) isotopes. E) progeners.
Q: When a carbon atom forms four single bonds, the bonds are at what angle to one another? A) 109.5 B) 90 C) 120 D) 23.5 E) 60
Q: C3H4is an example of a(n) A) aromatic. B) alkene. C) alkyne. D) alkane. E) cycloalkane
Q: Which of the following is an ethyl group?A) CH3CH2-B) CH2=CH-C) CH2CH3-D) CH3-E) CHCH-
Q: Which of the following is a methyl group?A) CH3CH2-B) CH3-C) CH2=CH-D) CH2CH3-E) CHCH-
Q: Hydrocarbons containing all single bonds and a ring in their structural formulas are A) alkenes. B) cycloalkanes. C) alkynes. D) alkanes. E) ketones.
Q: Hydrocarbons containing carbon-carbon triple bonds are A) alkenes. B) cycloalkanes. C) alkynes. D) alkanes. E) ketones.
Q: Hydrocarbons containing carbon-carbon double bonds are A) alkenes. B) cycloalkanes. C) alkynes. D) alkanes. E) ketones.
Q: Hydrocarbons containing only single bonds are A) alkanes. B) alkenes. C) aromatics. D) alkynes. E) ketones.
Q: In organic molecules, a bromine atom will normally form how many bonds? A) 2 B) 3 C) 4 D) 1 E) 0
Q: In organic molecules, a chlorine atom will normally form how many bonds? A) 2 B) 3 C) 4 D) 1 E) 0
Q: In organic molecules, a sulfur atom will normally form how many bonds? A) 0 B) 1 C) 2 D) 3 E) 4
Q: In organic molecules, a oxygen atom will normally form how many bonds? A) 0 B) 1 C) 2 D) 3 E) 4
Q: In organic molecules, a carbon atom will normally form how many bonds? A) 1 B) 4 C) 3 D) 2 E) 0
Q: The study of compounds that contain carbon is called A) biochemistry. B) inorganic chemistry. C) polymer chemistry. D) organic chemistry. E) physics.
Q: Which of the following atoms normally has one covalent bond to it? A) I B) Se C) Si D) P E) Ne
Q: Which of the following atoms normally has one covalent bond to it? A) At B) O C) Si D) N E) Kr
Q: Which of the following atoms normally has one covalent bond to it? A) At B) Te C) Si D) P E) Kr
Q: Which of the following atoms normally has one covalent bond to it? A) I B) O C) Si D) P E) Xe
Q: Organic chemistry studies chemical compounds that contain at least one atom of A) nitrogen. B) oxygen. C) carbon. D) hydrogen. E) silicon.
Q: Draw the structural formula for 2-pentene.
Q: Draw the structural formula for methyl alcohol.
Q: Draw the structural formula for glycerol.
Q: Draw the structural formula for glycine, the simplest amino acid.
Q: Draw the three structural formulas for the molecular formula C3H8O.
Q: Draw the two structural formulas for the molecular formula C2H7N.
Q: Kevlar forms from the monomers shown. Show the structure of the polymer, in the usual "bracket" format.
Q: Polypropylene forms from the monomer CH3CH=CH2. Show the structure of the polymer, in the usual "bracket" format.
Q: Complete the equation:
Q: Complete the equation:
Q: Match the general formula with the name of the class.______ a. esters 1. ROH______ b. carboxylic acids 2. RCOOR______ c. amides 3. RX______ d. amines 4. RCOOH______ e. alcohols 5. RNH2______ f. alkyl halides 6. RCONHR
Q: Draw the two structural isomers for propanol.
Q: Complete the equation: CH3CH = CH2+ H2____________________
Q: Complete the equation: CH3CCCH3+ 2 H2____________________
Q: Draw the structural formula for 1,1-dimethylcyclopropane.
Q: Draw the structural formula for 1-chloro-2-methylpentane.
Q: Draw the structural formula for 3-hexene.
Q: Hydrocarbons are first divided into aromatic and ______________ hydrocarbons.
Q: The second member of the alkane series, CH3CH3, is named _____________.
Q: The simplest member of the alkane series is named ______________.
Q: Both starch and cellulose are polymers of the monomer named ______________.
Q: Chemically combining glucose and fructose produces the compound named ______________.
Q: The compound methyl salicylate is commonly called ______________.
Q: CH2 OHCHOHCH2 OH is the structural formula for the compound named ______________.
Q: CH3COOH is the structural formula for the compound named ______________.
Q: CH3OH is the structural formula for the compound named ______________.
Q: CH3CH2OH is the structural formula for the compound named ______________.
Q: A(n) ______________ is a material whose basic molecule has no duplicate in nature.
Q: A monomer may be repeated many times in the formation of a chainlike molecule called a(n) ______________.
Q: Synthetic compounds that can be molded and hardened are called ______________.
Q: Nylon is a polyamide; Dacron is a(n) ______________.
Q: In large molecules, the fundamental repeating units are called ______________.
Q: The sodium salt of a fatty acid is known as a(n) ______________.
Q: The term detergentmeans "cleansing agent" and commonly refers to a(n) ______________ substitute.
Q: When cottonseed oil (a liquid) is hydrogenated, the solid fat called ______________ is obtained.
Q: The main component of the cell walls of plants is the carbohydrate called ______________.
Q: ______________ has the general formula (C6H10O5)n, where nmay take on values up to 3000.
Q: The complex chemical combinations of amino acids that are essential ingredients in living cells are called ______________.
Q: When a fat is treated with NaOH, the ester bonds break to form glycerol and the sodium salts of fatty acids, which are known as ______________.
Q: Sugars, starches, and cellulose are all classified as compounds called ______________.
Q: Carboxylic acids are characterized by the molecular arrangement "COOH, called the ______________ group.
Q: A carboxylic acid reacting with an alcohol forms water and a(n)______________.
Q: An alcohol is distinguished by having one or more ______________ groups in the molecule.
Q: Any chemical that can cause cancer is called a(n) ______________.
Q: The simplest member of the aromatic hydrocarbons is named ______________.
Q: The hydrocarbon symbolized by a square is called ______________.
Q: A saturated hydrocarbon contains only ______________ bonds, and its hydrogen content is at a maximum.
Q: Hydrocarbons that have the composition that satisfies the general formula CnH2ncan be either alkenes or ______________.
Q: Hydrocarbons with a carbon-carbon triple bond are called ______________.
Q: Hydrocarbons with the general formula CnH2n+2are called ______________.
Q: Compounds of carbon are classified as ______________ compounds.
Q: n-Butane and isobutane are the two ______________ of C4H10.
Q: Compounds containing only carbon and hydrogen are known as ______________.
Q: A(n) ______________ is formed by replacing a hydrogen atom in a hydrocarbon with a halogen atom.
Q: Alkanes minus one hydrogen atom are called ______________ groups.
Q: If a hydrocarbon is notaliphatic, it is ______________.
Q: The continuous-chain alkane with the formula C6H14is named ______________.
Q: Ethyne, H"CC"H, is also named ______________.
1 2 3 … 244

Subjects

Accounting Anthropology Archaeology Art History Banking Biology & Life Science Business Business Communication Business Development Business Ethics Business Law Chemistry Communication Computer Science Counseling Criminal Law Curriculum & Instruction Design Earth Science Economic Education Engineering Finance History & Theory Humanities Human Resource International Business Investments & Securities Journalism Law Management Marketing Medicine Medicine & Health Science Nursing Philosophy Physic Psychology Real Estate Science Social Science Sociology Special Education Speech Visual Arts