Biomolecules Questions and Answers
![11 How many of each kind of atom is in one molecule of water O O O 2 hydrogen atoms and 1 oxygen atom 1 hydrogen atom and 2 oxygen atoms 2 hydrogen atoms and 2 oxygen atoms 1 hydrogen atom and 1 oxygen atom](https://media.kunduz.com/media/sug-question-candidate/20230202235911780034-5357699.jpg?w=256)
Biology
Biomolecules11 How many of each kind of atom is in one molecule of water O O O 2 hydrogen atoms and 1 oxygen atom 1 hydrogen atom and 2 oxygen atoms 2 hydrogen atoms and 2 oxygen atoms 1 hydrogen atom and 1 oxygen atom
![True or false If you are measuring a child s temperature you are measuring how fast molecules are moving in that child s body True False QUESTION 10 True or false When you stir sugar into your morning coffee the sugar is acting as a solvent O True False](https://media.kunduz.com/media/sug-question-candidate/20230202220509977546-5335976.jpg?w=256)
Biology
BiomoleculesTrue or false If you are measuring a child s temperature you are measuring how fast molecules are moving in that child s body True False QUESTION 10 True or false When you stir sugar into your morning coffee the sugar is acting as a solvent O True False
![Lemon Milk Blood 0006 Milk Tomato Tablets Soap Drain Cleaner 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Acidic Neutral Alkaline Which of the following substances would be most likely to give protons H into a solution Baking soda Vinegar Bleach Blood](https://media.kunduz.com/media/sug-question-candidate/20230202220447693796-5335976.jpg?w=256)
Biology
BiomoleculesLemon Milk Blood 0006 Milk Tomato Tablets Soap Drain Cleaner 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Acidic Neutral Alkaline Which of the following substances would be most likely to give protons H into a solution Baking soda Vinegar Bleach Blood
![Be Ma Mo Ca RD Gr Ba Ra Sc Cr Mn Zr Nb Mo Hf Ru Rh Pd W Re Os Rf Db Sg Bh Hs Nd Pm Sm Eu Go 24 Cr Chromium 51 996 In the example above chromium what does the number 24 indicate This number tells you the atomic mass of the element O This number indicates how many isotopes are possible](https://media.kunduz.com/media/sug-question-candidate/20230202215742461671-5335976.jpg?w=256)
Biology
BiomoleculesBe Ma Mo Ca RD Gr Ba Ra Sc Cr Mn Zr Nb Mo Hf Ru Rh Pd W Re Os Rf Db Sg Bh Hs Nd Pm Sm Eu Go 24 Cr Chromium 51 996 In the example above chromium what does the number 24 indicate This number tells you the atomic mass of the element O This number indicates how many isotopes are possible
![Question 1 What coefficient must be added to the carbon in the reactants to balance the following equation Na CO 1 C s 2 Na g 3 CO g 05 04 02 Points 2](https://media.kunduz.com/media/sug-question-candidate/20230202145537253637-5336301.jpg?w=256)
Biology
BiomoleculesQuestion 1 What coefficient must be added to the carbon in the reactants to balance the following equation Na CO 1 C s 2 Na g 3 CO g 05 04 02 Points 2
![Question 3 Points 3 Select the skeleton equation for the reaction Ethane Oxygen Carbon dioxide Water OC H6 02 CO2 H O CH 02 C H 0 20 H 70 4CO 6H O OC H O CO H O](https://media.kunduz.com/media/sug-question-candidate/20230202145430083165-5336301.jpg?w=256)
Biology
BiomoleculesQuestion 3 Points 3 Select the skeleton equation for the reaction Ethane Oxygen Carbon dioxide Water OC H6 02 CO2 H O CH 02 C H 0 20 H 70 4CO 6H O OC H O CO H O
![Question 9 CuO H CUH CuZH2 O Cu Points 1 CU2 H O Fill in the blank](https://media.kunduz.com/media/sug-question-candidate/20230202144340462001-5336301.jpg?w=256)
![Question 10 Points 1 Below is the word equation for the reaction between sodium hydroxide and hydrochloric acid Identify the reactant s in the reaction Sodium hydroxide Hydrochloric acid Sodium chloride Water Q Hydrochloric acid Sodium chloride and water O Sodium hydroxide and hydrochloric acid Water](https://media.kunduz.com/media/sug-question-candidate/20230202144326702455-5336301.jpg?w=256)
Biology
BiomoleculesQuestion 10 Points 1 Below is the word equation for the reaction between sodium hydroxide and hydrochloric acid Identify the reactant s in the reaction Sodium hydroxide Hydrochloric acid Sodium chloride Water Q Hydrochloric acid Sodium chloride and water O Sodium hydroxide and hydrochloric acid Water
![uestion Which of the following is correct for a chemical equation Reactants products O Reactants products rightarrow Products reactants O Products rightarrow Reactants Reactants rightarrow Products](https://media.kunduz.com/media/sug-question-candidate/20230202141700898195-5336301.jpg?w=256)
Biology
Biomoleculesuestion Which of the following is correct for a chemical equation Reactants products O Reactants products rightarrow Products reactants O Products rightarrow Reactants Reactants rightarrow Products
![Question 4 Points 1 When a new substance is formed with physical and chemical properties different from the original substance it is called a O chemical change Ophysical change phase change both a physical change and a chemical change](https://media.kunduz.com/media/sug-question-candidate/20230202135159358367-5336301.jpg?w=256)
Biology
BiomoleculesQuestion 4 Points 1 When a new substance is formed with physical and chemical properties different from the original substance it is called a O chemical change Ophysical change phase change both a physical change and a chemical change
![Pick the odd one out O HCl aq NaOH aq NaCl aq H2O 1 O HCl aq 2NaOH aq NaCl aq 2 H20 1 OHCl aq 2NaOH aq 2 NaCl aq H 2 O 1 O2 HCl aq NaOH aq NaCl aq 2 H2O 1](https://media.kunduz.com/media/sug-question-candidate/20230202141645818366-5336301.jpg?w=256)
Biology
BiomoleculesPick the odd one out O HCl aq NaOH aq NaCl aq H2O 1 O HCl aq 2NaOH aq NaCl aq 2 H20 1 OHCl aq 2NaOH aq 2 NaCl aq H 2 O 1 O2 HCl aq NaOH aq NaCl aq 2 H2O 1
![Question 8 Points 2 10 g of NaOH is dissolved in 125 mL water Which among the following is a correct statement O A physical change has taken place No change occurred O A chemical change has taken place All of the choices](https://media.kunduz.com/media/sug-question-candidate/20230202141632762632-5336301.jpg?w=256)
Biology
BiomoleculesQuestion 8 Points 2 10 g of NaOH is dissolved in 125 mL water Which among the following is a correct statement O A physical change has taken place No change occurred O A chemical change has taken place All of the choices
![GradeResults co g O2 g 2002 g What is the balanced chemical equation for this reaction 1 bath House O200 g 202 g 2002 8 O CO g O2 g CO 2 g My Activities Tell me what you want to Row Diamond W 8 0 co COL A](https://media.kunduz.com/media/sug-question-candidate/20230202141426721129-5336301.jpg?w=256)
Biology
BiomoleculesGradeResults co g O2 g 2002 g What is the balanced chemical equation for this reaction 1 bath House O200 g 202 g 2002 8 O CO g O2 g CO 2 g My Activities Tell me what you want to Row Diamond W 8 0 co COL A
![Which of the following properties is NOT a physical property of a satin cloth It is soft It burns It is shiny It is smooth](https://media.kunduz.com/media/sug-question-candidate/20230202135945486037-5336301.jpg?w=256)
Biology
BiomoleculesWhich of the following properties is NOT a physical property of a satin cloth It is soft It burns It is shiny It is smooth
![Question 10 Points 2 Which of the following is a chemical change Clothes drying in a dryer Melting of an ice cube Chopping wood Boiling an egg](https://media.kunduz.com/media/sug-question-candidate/20230202135026522821-5336301.jpg?w=256)
Biology
BiomoleculesQuestion 10 Points 2 Which of the following is a chemical change Clothes drying in a dryer Melting of an ice cube Chopping wood Boiling an egg
![The metals are characterized by O low density O high electronegativity O low electronegativity O low conductivity www](https://media.kunduz.com/media/sug-question-candidate/20230202131313395150-5336301.jpg?w=256)
Biology
BiomoleculesThe metals are characterized by O low density O high electronegativity O low electronegativity O low conductivity www
![Classify the following as metals or nonmetals Halogens alkalis noble gases and alkaline earths O Alkalis alkaline earths metals halogens noble gases nonmetals O Alkalis alkaline earths nonmetals halogens noble gases metals O Alkaline earths nonmetals alkalis halogens noble gases metals O Halogens alkaline earths metals alkalis noble gases nonmetals](https://media.kunduz.com/media/sug-question-candidate/20230202131324601190-5336301.jpg?w=256)
Biology
BiomoleculesClassify the following as metals or nonmetals Halogens alkalis noble gases and alkaline earths O Alkalis alkaline earths metals halogens noble gases nonmetals O Alkalis alkaline earths nonmetals halogens noble gases metals O Alkaline earths nonmetals alkalis halogens noble gases metals O Halogens alkaline earths metals alkalis noble gases nonmetals
![Question 2 Points 2 Which of the following is responsible for metallic bonding Core electrons ONeutrons Protons Conduction electrons](https://media.kunduz.com/media/sug-question-candidate/20230202125655874586-5336301.jpg?w=256)
Biology
BiomoleculesQuestion 2 Points 2 Which of the following is responsible for metallic bonding Core electrons ONeutrons Protons Conduction electrons
![Question 7 Points 1 What electrons are involved in ionic bond formation Op electrons Os electrons Core electrons Valence electrons](https://media.kunduz.com/media/sug-question-candidate/20230202125534414711-5336301.jpg?w=256)
Biology
BiomoleculesQuestion 7 Points 1 What electrons are involved in ionic bond formation Op electrons Os electrons Core electrons Valence electrons
![Question A n Points 2 has electro negativity difference less than 1 2 between bonded atoms O ionic compound covalent compound O metallic compound polar covalent compound](https://media.kunduz.com/media/sug-question-candidate/20230202125707615562-5336301.jpg?w=256)
Biology
BiomoleculesQuestion A n Points 2 has electro negativity difference less than 1 2 between bonded atoms O ionic compound covalent compound O metallic compound polar covalent compound
![GradeResulls Question 6 Points 2 Metals have the properties of ductility which shows My Activities Tell me what you want to do Q the ability of a substance to be stretched the ability of a substance to be bent O the ability of a substance to be broken the ability of a substance to be melted](https://media.kunduz.com/media/sug-question-candidate/20230202125543878037-5336301.jpg?w=256)
Biology
BiomoleculesGradeResulls Question 6 Points 2 Metals have the properties of ductility which shows My Activities Tell me what you want to do Q the ability of a substance to be stretched the ability of a substance to be bent O the ability of a substance to be broken the ability of a substance to be melted
![Question 10 Points 2 Which of the following compounds contain covalent bond O C6H1206 OMg0 AKC13 LIF](https://media.kunduz.com/media/sug-question-candidate/20230202124738573890-5336301.jpg?w=256)
Biology
BiomoleculesQuestion 10 Points 2 Which of the following compounds contain covalent bond O C6H1206 OMg0 AKC13 LIF
![Question Which of the following ions have names ended with ide O Metal ions O Polyatomic cations O Monatomic cations O Monatomic anions](https://media.kunduz.com/media/sug-question-candidate/20230202124213232688-5336301.jpg?w=256)
Biology
BiomoleculesQuestion Which of the following ions have names ended with ide O Metal ions O Polyatomic cations O Monatomic cations O Monatomic anions
![dentify the element that can gain one electron O Br O O OS OC](https://media.kunduz.com/media/sug-question-candidate/20230202124018050311-5336301.jpg?w=256)
![Chemical formula of hydrochloric acid is OHCI O HCIO O HdOz HCIO3](https://media.kunduz.com/media/sug-question-candidate/20230202124031968284-5336301.jpg?w=256)
![deResulls My Activities The molar mass of an element is the mass of one atom gram O mole Oliter Tell me what you want to do Q 101 Dalmatians City of the element](https://media.kunduz.com/media/sug-question-candidate/20230202121302889127-5336301.jpg?w=256)
Biology
BiomoleculesdeResulls My Activities The molar mass of an element is the mass of one atom gram O mole Oliter Tell me what you want to do Q 101 Dalmatians City of the element
![Why are organ systems so important to understand How can learning about animal organ systems help you in your future](https://media.kunduz.com/media/sug-question-candidate/20230202121331487573-3619951.jpg?w=256)
Biology
BiomoleculesWhy are organ systems so important to understand How can learning about animal organ systems help you in your future
![Question 3 Points 2 Which of the following is a binary ionic compound NH3 O H O O co O Coch](https://media.kunduz.com/media/sug-question-candidate/20230202121420065070-5336301.jpg?w=256)
Biology
BiomoleculesQuestion 3 Points 2 Which of the following is a binary ionic compound NH3 O H O O co O Coch
![bath House Grade Results My Activities Tell me what you want to do Q Which of the following represents the number of moles of chloride ion in 47 5 g of MgCl O 1 5 mol O 1 mol 0 5 mol 2 mol 1 Row Diamond W101 Dalmatians City 10k Yellow Gols](https://media.kunduz.com/media/sug-question-candidate/20230202121254369298-5336301.jpg?w=256)
Biology
Biomoleculesbath House Grade Results My Activities Tell me what you want to do Q Which of the following represents the number of moles of chloride ion in 47 5 g of MgCl O 1 5 mol O 1 mol 0 5 mol 2 mol 1 Row Diamond W101 Dalmatians City 10k Yellow Gols
![Periodic Table Unit Test Question 7 Which of the following dimensional analysis set up is correct to convert mass of sulfur to atoms of sulfur O Points 2 O 10 0 g Sx 10 0 g S x 10 0 g S x 100 gsx 6 02 x 10 1 0 g S atoms S 1 mole S 32 07 g S 1 mole S 32 07 g S x 1 atom S 6 02 x 10 moles S 6 02 x 103 atoms S 1 mole S 6 02 x 10 atoms S](https://media.kunduz.com/media/sug-question-candidate/20230202115506558776-5336301.jpg?w=256)
Biology
BiomoleculesPeriodic Table Unit Test Question 7 Which of the following dimensional analysis set up is correct to convert mass of sulfur to atoms of sulfur O Points 2 O 10 0 g Sx 10 0 g S x 10 0 g S x 100 gsx 6 02 x 10 1 0 g S atoms S 1 mole S 32 07 g S 1 mole S 32 07 g S x 1 atom S 6 02 x 10 moles S 6 02 x 103 atoms S 1 mole S 6 02 x 10 atoms S
![Which of the following statement is correct regarding metalloids O Metalloids are good conductors O Metalloids are poor conductors O Metalloids are semiconductors O Metalloids are insulators](https://media.kunduz.com/media/sug-question-candidate/20230202115606177153-5336301.jpg?w=256)
Biology
BiomoleculesWhich of the following statement is correct regarding metalloids O Metalloids are good conductors O Metalloids are poor conductors O Metalloids are semiconductors O Metalloids are insulators
![The similarity between Ernst Rutherford s and Niels Bohr s model of the atom is that they contain and orbit the nucleus respectively O a nucleus negatively charged protons O a nucleus negatively charged electrons O a nucleus negatively charged neutrons a nucleus negatively charged atoms](https://media.kunduz.com/media/sug-question-candidate/20230202113430921092-5336301.jpg?w=256)
Biology
BiomoleculesThe similarity between Ernst Rutherford s and Niels Bohr s model of the atom is that they contain and orbit the nucleus respectively O a nucleus negatively charged protons O a nucleus negatively charged electrons O a nucleus negatively charged neutrons a nucleus negatively charged atoms
![The atomic model changed from time to time This is because Oscientists discussed their ideas with each other O more evidence is available through various experiments O the atom has changed with time O the discovery of more elements](https://media.kunduz.com/media/sug-question-candidate/20230202112650811953-5336301.jpg?w=256)
Biology
BiomoleculesThe atomic model changed from time to time This is because Oscientists discussed their ideas with each other O more evidence is available through various experiments O the atom has changed with time O the discovery of more elements
![Points 2 Which of the following is used to measure objects O Computer simulations O Metric ruler Stopwatch Thermometer](https://media.kunduz.com/media/sug-question-candidate/20230202105311844102-5336301.jpg?w=256)
Biology
BiomoleculesPoints 2 Which of the following is used to measure objects O Computer simulations O Metric ruler Stopwatch Thermometer
![Which of the following numbers has four significant figures 1 0 001209 II 2 450x104 III 12079 IV 0 000002023 OI and II O III and IV O I II and IV](https://media.kunduz.com/media/sug-question-candidate/20230202105228803633-5336301.jpg?w=256)
Biology
BiomoleculesWhich of the following numbers has four significant figures 1 0 001209 II 2 450x104 III 12079 IV 0 000002023 OI and II O III and IV O I II and IV
![Which of the following statements is NOT correct about SI units O The SI unit of time is second O The SI unit of mass is kilogram The SI unit of temperature is candela The SI unit of length is meter](https://media.kunduz.com/media/sug-question-candidate/20230202105242209619-5336301.jpg?w=256)
Biology
BiomoleculesWhich of the following statements is NOT correct about SI units O The SI unit of time is second O The SI unit of mass is kilogram The SI unit of temperature is candela The SI unit of length is meter
![molecules can only vibrate and rotate in a fixed position A solid s O A liquid s Gas O Plasma](https://media.kunduz.com/media/sug-question-candidate/20230202104657555837-5336301.jpg?w=256)
Biology
Biomoleculesmolecules can only vibrate and rotate in a fixed position A solid s O A liquid s Gas O Plasma
![Quest is the conversion of water vapor into ice without a liquid phase O Liquefaction O Sublimation O Crystallization My Activities Tell me what you want to do Q Condensation](https://media.kunduz.com/media/sug-question-candidate/20230202104547435422-5336301.jpg?w=256)
Biology
BiomoleculesQuest is the conversion of water vapor into ice without a liquid phase O Liquefaction O Sublimation O Crystallization My Activities Tell me what you want to do Q Condensation
![Question 2 Points 1 The product of density and volume of a liquid is used to find the O Surface tension O Temperature O Pressure Mass of the liquid](https://media.kunduz.com/media/sug-question-candidate/20230202103643310483-5336301.jpg?w=256)
Biology
BiomoleculesQuestion 2 Points 1 The product of density and volume of a liquid is used to find the O Surface tension O Temperature O Pressure Mass of the liquid
![Combined Gas Law equation is represented by O T1 P1V1 T2 P2V2 O P V1 T1 P2V2 T2 OP1V1 T1 P2V2 T2 PV nRT](https://media.kunduz.com/media/sug-question-candidate/20230202103635511600-5336301.jpg?w=256)
Biology
BiomoleculesCombined Gas Law equation is represented by O T1 P1V1 T2 P2V2 O P V1 T1 P2V2 T2 OP1V1 T1 P2V2 T2 PV nRT
![Question 7 The molar mass of Potassium dichromate K Cr O7 is O 294 g mol O 194 g mol 492 g mol 140 g mol](https://media.kunduz.com/media/sug-question-candidate/20230202103403742754-5336301.jpg?w=256)
Biology
BiomoleculesQuestion 7 The molar mass of Potassium dichromate K Cr O7 is O 294 g mol O 194 g mol 492 g mol 140 g mol
![Which of the following is the gradient for the following hill LEO 3 5 5 3 03 25 m 15m](https://media.kunduz.com/media/sug-question-candidate/20230202103317613681-5336301.jpg?w=256)
Biology
BiomoleculesWhich of the following is the gradient for the following hill LEO 3 5 5 3 03 25 m 15m
![Question 4 Points 2 Which of the following equations can be used to solve volume of a solution using molarity equation O Volume moles molarity Volume molest molarity Volume moles molarity Volume moles x molarity](https://media.kunduz.com/media/sug-question-candidate/20230202103522614313-5336301.jpg?w=256)
Biology
BiomoleculesQuestion 4 Points 2 Which of the following equations can be used to solve volume of a solution using molarity equation O Volume moles molarity Volume molest molarity Volume moles molarity Volume moles x molarity
![Points 3 Question 8 Which of the following conversions is correct O 0 5 dollar 50 pennies O 0 5 dollar 20 nickels 0 5 dollar 20 dimes O 0 5 dollar 8 quarters](https://media.kunduz.com/media/sug-question-candidate/20230202102259656677-5336301.jpg?w=256)
Biology
BiomoleculesPoints 3 Question 8 Which of the following conversions is correct O 0 5 dollar 50 pennies O 0 5 dollar 20 nickels 0 5 dollar 20 dimes O 0 5 dollar 8 quarters
![III Color change on heating IV Formation of starch iodine complex O I II and III My Activities Question 5 Points 3 Which of the following observations indicates a chemical change in the identification of an unknown substance 1 Bubble formation II Electrical conductivity O II III and IV OI III and IV Tell me what you want to do Q a](https://media.kunduz.com/media/sug-question-candidate/20230202095329512897-5336301.jpg?w=256)
Biology
BiomoleculesIII Color change on heating IV Formation of starch iodine complex O I II and III My Activities Question 5 Points 3 Which of the following observations indicates a chemical change in the identification of an unknown substance 1 Bubble formation II Electrical conductivity O II III and IV OI III and IV Tell me what you want to do Q a
![In the diagram shown below homogeneous mixture s 10000 OLI 100 000000 6000 000 1 II and III 11 and 11 800 00 00 III 00 60 is are a heterogeneous mixture s and is are a](https://media.kunduz.com/media/sug-question-candidate/20230202093805001618-5336301.jpg?w=256)
Biology
BiomoleculesIn the diagram shown below homogeneous mixture s 10000 OLI 100 000000 6000 000 1 II and III 11 and 11 800 00 00 III 00 60 is are a heterogeneous mixture s and is are a
![Which of the following statements is TRUE O All substances are not composed of atoms O Elements are not pure substances Matter is classified into elements compounds and mixtures Elements are classified into metals and metalloids](https://media.kunduz.com/media/sug-question-candidate/20230202093817240523-5336301.jpg?w=256)
Biology
BiomoleculesWhich of the following statements is TRUE O All substances are not composed of atoms O Elements are not pure substances Matter is classified into elements compounds and mixtures Elements are classified into metals and metalloids
![Which of the following is an element a Cyp b d tal b Water c Carbon dioxide d Ethanol](https://media.kunduz.com/media/sug-question-candidate/20230202093739879838-5336301.jpg?w=256)
Biology
BiomoleculesWhich of the following is an element a Cyp b d tal b Water c Carbon dioxide d Ethanol
![GradeResults My Activities In which state of matter do particles move freely O Solid O Liquid Gas All of these Tell me what you want to do men](https://media.kunduz.com/media/sug-question-candidate/20230202092314837272-5336301.jpg?w=256)
Biology
BiomoleculesGradeResults My Activities In which state of matter do particles move freely O Solid O Liquid Gas All of these Tell me what you want to do men
![GradeResults My Activities When a gas is converted into a liquid it is called O condensation O evaporation O sublimation Tell me what you want to di solidification](https://media.kunduz.com/media/sug-question-candidate/20230202091808515634-5336301.jpg?w=256)
Biology
BiomoleculesGradeResults My Activities When a gas is converted into a liquid it is called O condensation O evaporation O sublimation Tell me what you want to di solidification