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Chemistry LibreTexts

3.04 Week 3 Quiz

  • Page ID
    184202
  • cc_profilecc.exam.v0p1qmd_assessmenttypeExaminationqmd_scoretypePercentagecc_maxattempts1
    cc_profilecc.multiple_choice.v0p1Carbon is unique due to the carbon atom'sbonding properties.six outer unpaired electrons.ionic compounds.hydrogen bonding strength.1100cc_profilecc.multiple_choice.v0p1Which category of carbon-based molecules includes sugars and starches?unsaturated fatty acidsphospholipidsproteinscarbohydrates8100cc_profilecc.multiple_choice.v0p1Fats, oils, and cholesterol are all types ofcell membranes.hormones.lipids.fatty acids.11100cc_profilecc.multiple_choice.v0p1Proteins are composed of which molecules?amino acidsfatty acidsmonosaccharidesnucleic acids13100cc_profilecc.multiple_choice.v0p1DNA and RNA are two types ofproteins.nucleic acids.lipids.carbohydrates.18100cc_profilecc.multiple_choice.v0p1Chemical reactions change substances into different substances byconserving matter between the substances.breaking and forming chemical bonds.strengthening electrical charges of substances.changing a solvent into a solute.22100cc_profilecc.multiple_choice.v0p1Identify the reactants in the following chemical reaction: 6HO + 6CO <img width="15" height="15" align="bottom" alt="mc007-1.jpg" src="$IMS-CC-FILEBASE$../resources/mc007-1_572a0aa936d8d.jpg" border="0"> CHO + 6O6<img width="30" height="26" align="middle" alt="mc007-2.jpg" src="$IMS-CC-FILEBASE$../resources/mc007-2_572a0aa9521f3.jpg" border="0"> and 6<img width="28" height="26" align="middle" alt="mc007-3.jpg" src="$IMS-CC-FILEBASE$../resources/mc007-3_572a0aa974e4e.jpg" border="0">6<img width="28" height="26" align="middle" alt="mc007-4.jpg" src="$IMS-CC-FILEBASE$../resources/mc007-4_572a0aa991b80.jpg" border="0"> and <img width="58" height="26" align="middle" alt="mc007-5.jpg" src="$IMS-CC-FILEBASE$../resources/mc007-5_572a0aa9ad0f2.jpg" border="0">6<img width="30" height="26" align="middle" alt="mc007-6.jpg" src="$IMS-CC-FILEBASE$../resources/mc007-6_572a0aa9c9e2d.jpg" border="0">, <img width="58" height="26" align="middle" alt="mc007-7.jpg" src="$IMS-CC-FILEBASE$../resources/mc007-7_572a0aa9e54b5.jpg" border="0">, and 6<img width="18" height="26" align="middle" alt="mc007-8.jpg" src="$IMS-CC-FILEBASE$../resources/mc007-8_572a0aaa0c538.jpg" border="0">C6H12<img width="18" height="26" align="middle" alt="mc007-9.jpg" src="$IMS-CC-FILEBASE$../resources/mc007-9_572a0aaa293e4.jpg" border="0"> and 6<img width="18" height="26" align="middle" alt="mc007-10.jpg" src="$IMS-CC-FILEBASE$../resources/mc007-10_572a0aab130c0.jpg" border="0">25100cc_profilecc.multiple_choice.v0p1The double arrows tell you that the following reaction<br><img width="117" height="26" align="middle" alt="mc008-1.jpg" src="$IMS-CC-FILEBASE$../resources/mc008-1_572a0aab31e55.jpg" border="0">takes place very rapidly.is very unstable.occurs in both directions.has high bond energies.31100cc_profilecc.multiple_choice.v0p1What is the term for the amount of energy that needs to be added for a chemical reaction to start?chemical energyactivation energybond energyreactant energy34100cc_profilecc.multiple_choice.v0p1Which phrase best describes an exothermic chemical reaction?does not absorb any energyforms products with higher bond energy than reactantsis in a state of equilibriumreleases more energy than it absorbs40100cc_profilecc.multiple_choice.v0p1Which phrase best describes the effect of a catalyst on a chemical reaction?increases the temperatureincreases the volume of reactantsdecreases the reaction ratedecreases the activation energy44100cc_profilecc.multiple_choice.v0p1Enzymes affect chemical reactions in living organisms bychanging the direction of a reaction.breaking down molecules into starch.increasing the temperature range.weakening bonds in reactants.48100cc_profilecc.multiple_choice.v0p1The specific reactants that an enzyme acts on are calledcatalystsproteins.substrates.amino acids.51100cc_profilecc.multiple_choice.v0p1Changes in temperature and pH can decrease an enzyme's activity by breakinghydrogen bondspeptide bondsamino acidssulfur-sulfur bonds53100