Organic Chemistry Concepts, Exams of Chemistry

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CUMULATIVE EXAM CHEMISTRY FINAL

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What makes carbon such a unique element? A) Elemental carbon comes in two forms, diamond and graphite. B) Carbon forms four bonds, although the ground state configuration would predict the formation of fewer bonds. C) Carbon forms covalent bonds rather than ionic bonds. D) To a greater extent than any other element, carbon can bond to itself to form straight chains, branched chains and rings. E) Carbon has two stable isotopes, carbon-12 and carbon-13 - ANSWER >>>>D) To a greater extent than any other element, carbon can bond to itself to form straight chains, branched chains and rings. A molecule with the formula C3H8 is a(n): A) hexane B) propane C) decane D) butane E) ethane - ANSWER >>>>B) propane The general formula for noncyclic alkenes is: A) CnH2n+ B) CnH2n C) CnH2n- 2 D) CnHn+ E) CnHn - ANSWER >>>>B) CnH2n Which of the following formulas represents an alkene?

A) CH3CH2CH

B) CH3CH

C) CH3CH2CHCH

D) CH3CH2Cl E) CHCH - ANSWER >>>>C) CH3CH2CHCH Which is NOT a physical property of alcohols or phenols? A) Phenols are generally only slightly soluble in water. B) The solubilities of normal primary alcohols in water decrease with increasing molecular weight. C) The hydroxyl group of an alcohol is nonpolar. D) Due to hydrogen bonding, boiling points of alcohols are much higher than those of corresponding alkanes. E) Boiling points of normal primary alcohols increase with increasing molecular weight. - ANSWER >>>>C) The hydroxyl group of an alcohol is nonpolar. What is the functional group of this compound: CH3OCH2CH3. A) Ether B) Ester C) Carboxylic acid D) Amine E) Ketone - ANSWER >>>>A) Ether The functional group illustrated by R-O-Rʹ is an A) ether B) alcohol C) alkyl D) aldehyde E) ester - ANSWER >>>>A) ether Which compound is the most soluble in water? A) CH3CH2CH2CH2OH B) CH3CH2CH2CH C) CH3CH2CH2CH2CH2CH2CH2CH

D) CH3CH2CH2OH

E) CH3CH2CH3 - ANSWER >>>>D) CH3CH2CH2OH

Which compound has the highest boiling point? A) CH3CH2CH2OH B) CH3COCH C) CH3CHO D) CH3CH2OH E) CH3CH2CHO - ANSWER >>>>A) CH3CH2CH2OH A kitten's normal body temperature is 102 ºF. Express this temperature in ºC A) 5.7 ºC B) 38.9 ºC C) 56.7 ºC D) 184 ºC - ANSWER >>>>B) 38.9 ºC Which of the following is a chemical change? A) evaporation of water B) melting of ice C) A piece of paper cut into small pieces D) frying an egg - ANSWER >>>>D) frying an egg A radioisotope has a half-life of 4 days. How much of a 20-gram sample of this radioisotope remains at the end of 16 day time period? A) 10 gram B) 5 gram C) 2.5 gram D) 1.25 gram - ANSWER >>>>D) 1.25 gram The formula for ammonium chloride is A) NH4Cl B) NH4Cl C) NCl

D) AmCl - ANSWER >>>>B) NH4Cl The number of covalent bonds that a nitrogen atom is expected to form is A) 1 B) 2 C) 3 D) 4 - ANSWER >>>>C) 3 According to the octet rule, aluminum (Al) will form which of the following monoatomic ions? A) Al- B) Al2+ C) Al3+ D) Al3- - ANSWER >>>>C) Al3+ What is the molecular geometry of the bonds around the carbon in CCl4? A) tetrahedral B) Bent C) Linear D) Pyramidal E) Trigonal planar - ANSWER >>>>A) tetrahedral What is the geometry of CS2? A) linear B) bent C) trigonal planar D) trigonal pyramidal - ANSWER >>>>A) linear The strongest noncovalent interaction (Intermolecular forces) that can occur between hydrocarbons is. A) dipole-dipole forces

B) hydrogen bonding C) ion-dipole interaction D) London force (Dispersion force) - ANSWER >>>>D) London force (Dispersion force) A gas cylinder at a pressure of 4408 torr contains a mixture of N2, O2, and helium gases. If the partial pressure of N2 gas is 1520 torr and the partial pressure of helium is 25 torr, what is the partial pressure of O2? A) 760 torr B) 4020 torr C) 5953 torr D) 2863 torr - ANSWER >>>>D) 2863 torr A cylinder of gas originally at 28.0°C and 1.00 atm of pressure is heated to 112.0°C. What is the new pressure? A) 4.00 atm B) 0.250 atm C) 0.782 atm D) 1.28 atm - ANSWER >>>>D) 1.28 atm What is the %(w/v) of a 1500mL solution containing 45 g of NaCl? A) 5% B) 3% C) 2% D) 0.030% - ANSWER >>>>B) 3% If 25.0 mL of 3.0 M HCl are diluted to give a final volume of 150 mL, what is the new concentration? A) 0.50 M B) 75 M C) 2.0 M D) 4.5 M - ANSWER >>>>A) 0.50 M

The concentration of calcium ion in blood is found to be 1.21 mmol/L. What is this concentration in mEq/L? A) 0.605 mEq/L B) 1.21 mEq/L C) 2.42 mEq/L D) 4.84 mEq/L - ANSWER >>>>C) 2.42 mEq/L Which is not a common characteristic of an acid? A) it turns litmus pink/red B) it feels soapy C) it dissolves common metals D) all of the above are common characteristics of acids - ANSWER >>>>B) it feels soapy Whenever an equilibrium constant, Keq, has a value greater than 1, which of the following statements is true at equilibrium? A) There are more reactants than products B) The concentration of products is the same as the concentration of reactants C) There are more products than reactants D) Relative composition of reaction mixture cannot be predicted - ANSWER >>>>C) There are more products than reactants A solution has a [H3O+] of 1 x 10-5. What is the [OH-] of the solution? A) 1 x 10- 5 B) 1 x 10- 7 C) 1 x 10- 9 D) 1 x 10-14 - ANSWER >>>>C) 1 x 10- 9 A weak acid A) does not dissolve in water B) ionizes slightly in water to give molecules and a few ions C) ionizes 100% in water to give all ions

D) dissolves in water only as molecules - ANSWER

B) ionizes slightly in water to give molecules and a few ions To prevent respiratory alkalosis, A) the kidneys increase the bicarbonate production B) the kidneys decrease the bicarbonate production C) the kidneys secrete fewer hydrogen ions. D) the body retains less carbon dioxide. - ANSWER B) the kidneys decrease the bicarbonate production Which one of the following can be added to lemon juice to increase its pH? A) lime juice B) baking powder C) concentrated hydrochloric acid D) ethanoic acid - ANSWER >>>>B) baking powder Pentane has molecular formula A) C5H B) C5H C) C3H D) C3H6 - ANSWER >>>>B) C5H Which of the following hydrocarbon is used for ripening of fruit A) ethane B) ethene C) pentane D) propane - ANSWER >>>>B) ethene Which of the following compounds has the lowest boiling point? A) heptane B) 3-methylpentane C) 2-methylpentane D) hexane

E) 2,2-dimethylbutane - ANSWER >>>>E) 2,2- dimethylbutane

Solids have shape and volume. According to their definitions, which of the following would not occur as unsaturated hydrocarbons? A) alkane B) alkene C) alkyne D) none of the above are correct - ANSWER >>>>A) alkane Organic compounds responsible for flavors in fruits and the scent of flowers are A) Alkanes B) Alcohols C) Ethers D) Esters E) Ketones - ANSWER >>>>D) Esters The number 390000, expressed correctly in scientific notation, is A) 3.9 x 10- 6 B) 3.9 x 105 C) 3. D) 3.9 x 10-5 - ANSWER >>>>B) 3.9 x 105 A) fixed/variable B) fixed/fixed C) variable/fixed D) variable/variable - ANSWER >>>>B) fixed/fixed Which is a unit of measure of mass? A) liter B) ºC C) kilogram D) Joule - ANSWER >>>>C) kilogram

All atoms of the same element that have the same atomic number, but different mass numbers are known as A) protons B) moles C) isotopes D) isomers - ANSWER >>>>C) isotopes Choose the incorrect statement about the proton: A) The proton has the atomic mass of 1 amu B) The proton has the same charge as the neutron. C) The proton has greater mass than an electron D) The proton and the neutron have approximately the same atomic mass - ANSWER >>>>B) The proton has the same charge as the neutron. The normal dosage for azinthromycin, an antibiotic, is 3.3 mg/kg. What is the proper dose for a 150 lb patient? (Given: 1kg = 2.205 lbs) A) 100 mg B) 224 mg C) 300 mg D) 495 mg - ANSWER >>>>B) 224 mg At 20 oC, chloroform (CHCl3) has a density of 1. g/mL. What is the mass of 7.52 mL of chloroform at 20 oC? A) 0.198 g B) 13.4 g C) 5.05 g D) 11.2 g - ANSWER >>>>D) 11.2 g Which statement is NOT true about subatomic particles? A) Protons and electrons are found in the nucleus. B) Neutrons have no electrical charge. C) Electrons contain much less mass than neutrons.

D) Electrons are found in orbitals around the nucleus. - ANSWER

A) Protons and electrons are found in the nucleus. How many valence electron potassium will have A) 19 B) 9 C) 1 D) 2 - ANSWER >>>>C) 1 Which of the following is an anion? A) I- B) Al3+ C) kilogram All atoms of the same element that have the same atomic number, but different mass numbers are known as A) protons B) moles C) isotopes D) isomers - ANSWER >>>>C) isotopes Choose the incorrect statement about the proton: A) The proton has the atomic mass of 1 amu B) The proton has the same charge as the neutron. C) The proton has greater mass than an electron D) The proton and the neutron have approximately the same atomic mass - ANSWER >>>>B) The proton has the same charge as the neutron. The normal dosage for azinthromycin, an antibiotic, is 3.3 mg/kg. What is the proper dose for a 150 lb patient? (Given: 1kg = 2.205 lbs) A) 100 mg B) 224 mg C) 300 mg D) 495 mg - ANSWER >>>>B) 224 mg At 20 oC, chloroform (CHCl3) has a density of 1. g/mL. What is the mass of 7.52 mL of chloroform at 20 oC? A) 0.198 g B) 13.4 g C) 5.05 g D) 11.2 g - ANSWER >>>>D) 11.2 g Which statement is NOT true about subatomic particles? A) Protons and electrons are found in the nucleus. B) Neutrons have no electrical charge. C) Electrons contain much less mass than neutrons. D) Electrons are found in orbitals around the nucleus. - ANSWER >>>>A) Protons and electrons are found in the nucleus. How many valence electron potassium will have A) 19 B) 9 C) 1 D) 2 - ANSWER >>>>C) 1 Which of the following is an anion? A) I- B) Al3+ C) Mg D) F - ANSWER >>>>A) I- CO3 2- is the ion A) carbonate B) hydrogencarbonate (bicarbonate) C) acetate D) cyanide - ANSWER >>>>A) carbonate How many protons and electrons does Mg2+ have? A) 12 protons and 12 electrons B) 12 protons and 14 electrons C) 14 protons and 12 electrons D) 12 protons and 10 electrons - ANSWER >>>>D) 12 protons and 10 electrons How many valence electrons must O atom gain to reach an octet? A) 0 B) 1 C) 2 D) 3 - ANSWER >>>>C) 2 B) The proton has the same charge as the neutron. The normal dosage for azinthromycin, an antibiotic, is 3.3 mg/kg. What is the proper dose for a 150 lb patient? (Given: 1kg = 2.205 lbs) A) 100 mg B) 224 mg C) 300 mg D) 495 mg - ANSWER >>>>B) 224 mg At 20 oC, chloroform (CHCl3) has a density of 1. g/mL. What is the mass of 7.52 mL of chloroform at 20 oC? A) 0.198 g B) 13.4 g C) 5.05 g D) 11.2 g - ANSWER >>>>D) 11.2 g Which statement is NOT true about subatomic particles? A) Protons and electrons are found in the nucleus. B) Neutrons have no electrical charge. C) Electrons contain much less mass than neutrons. D) Electrons are found in orbitals around the nucleus. - ANSWER >>>>A) Protons and electrons are found in the nucleus. How many valence electron potassium will have A) 19 B) 9 C) 1 D) 2 - ANSWER >>>>C) 1 Which of the following is an anion? A) I- B) Al3+ C) Mg D) F - ANSWER >>>>A) I- CO3 2- is the ion A) carbonate B) hydrogencarbonate (bicarbonate) C) acetate D) cyanide - ANSWER >>>>A) carbonate How many protons and electrons does Mg2+ have? A) 12 protons and 12 electrons B) 12 protons and 14 electrons C) 14 protons and 12 electrons D) 12 protons and 10 electrons - ANSWER >>>>D) 12 protons and 10 electrons How many valence electrons must O atom gain to reach an octet? A) 0 B) 1 C) 2 D) 3 - ANSWER >>>>C) 2 The formula for ammonium chloride is

A) NH4Cl B) NH4Cl C) NCl D) AmCl What is the molar mass of isopentyl acetate, C7H14O2, a compound responsible for the odor of bananas? A) 130.19 g B) 98.32 g C) 146.58 g D) 119.35 g E) 13.19 g - ANSWER >>>>A) 130.19 g According to the octet rule, aluminum (Al) will form which of the following monoatomic ions? A) Al- B) Al2+ C) Al3+ D) Al3- - ANSWER >>>>C) Al3+ What is the geometry of CS2? A) linear B) bent C) trigonal planar D) trigonal pyrimidal - ANSWER >>>>A) linear Standard temperature and pressure corresponds to A) temperature of 0C and pressure of 1 psi B) temperature of 25C and pressure of 1 atm C) temperature of 0C and pressure of 2 psi D) temperature of 0C and pressure of 1 atm - ANSWER

D) temperature of 0C and pressure of 1 atm

Which of the following is monosaccharide? A) sucrose B) lactose C) maltose D) fructose - ANSWER >>>>D) fructose All of the following are carbohydrates EXCEPT: A) starch B) glycogen C) cellolose D) Cholesterol - ANSWER >>>>D) Cholesterol Fatty acids that are unsaturated have: A) an amino group B) a double bond C) an excess of protons D) a ester group - ANSWER >>>>B) a double bond Carbohydrates can have multiple chiral carbon atoms allowing for multiple isomers. How many stereoisomers would a carbohydrate with 5 chiral carbons have? A) 5 stereoisomers B) 20 stereoisomers C) 32 stereoisomers D) 60 stereoisomers - ANSWER >>>>C) 32 stereoisomers The carbohydrates which contain the largest molecules are the A) monosaccharides. B) polysaccharides. C) oligosaccharides. D) aldohexoses - ANSWER >>>>B) polysaccharides. Triglycerides composed of glycerin and mostly polyunsaturated fatty acid residues are likely to be at room temperature A) solid fats

B) liquid oils C) gases D) waxes - ANSWER >>>>B) liquid oils A codon is A) a triplet of the bases on mRNA B) a triplet of the bases on tRNA C) a triplet of the bases on DNA D) a triplet of amino acids in the ribosome - ANSWER

A) a triplet of the bases on mRNA The base adenine is always paired with. A) Adenine B) Guanine C) Cytosine D) Thymine - ANSWER >>>>D) Thymine Which of the following bases is found only in DNA? A) thymine B) uracil C) cytosine D) guanine - ANSWER >>>>A) thymine The bonding forces between two DNA strands in a double helix are A) peptide linkages B) phosphate bonds C) acetal bonds D) hydrogen bonds - ANSWER >>>>D) hydrogen bonds -phosphate-sugar-phosphate-sugar- is an example of a backbone. A) human

B) chemical C) nucleic acid

D) all the choices - ANSWER >>>>C) nucleic acid The sequence of one strand of DNA is 5' TCGATC 3'. The sequence of the complementary strand would be A) 5' AGCTAG 3' B) 5' TCGATC 3' C) 5' CTAGCT 3' D) 5' GCTAGC 3' E) 5' GATCGA 3 - ANSWER >>>>A) 5' AGCTAG 3' What is produced at the end of glycolysis? A) Pyruvic acid B) Archadonic acid C) Acetyl coA D) Fatty acid - ANSWER >>>>A) Pyruvic acid What is present in a nucleotide that is not found in a nucleoside? A) a phosphate B) a monosaccharide C) an alcohol group D) a nitrogen base - ANSWER >>>>A) a phosphate The process by which DNA makes RNA molecules is known as . A) replication B) transcription C) translation D) reverse transcription - ANSWER >>>>B) transcription which of the following is not an step in glucose metabolism A) Glycolysis B) citric acid cycle C) nitrogen cycle D) electron transport chain E) formation of acetyl coA - ANSWER >>>>C) nitrogen

cycle

Synthesis of proteins from aminoacids is an example of A) catabolism B) anabolism C) parabolism D) metabolism - ANSWER >>>>A) catabolism A kitten's normal body temperature is 102 ºF. Express this temperature in ºC A) 5.7 ºC B) 38.9 ºC C) 56.7 ºC D) 184 ºC - ANSWER >>>>B) 38.9 ºC What do you do to test a hypothesis? A) Guess B) Publish a Scientific Paper C) Disorganized D) Design an Experiment - ANSWER >>>>D) Design an Experiment A strong acid: A) does not dissolve in water B) ionizes slightly in water to give molecules and a few ions C) ionizes 100% in water to give all ions D) dissolves in water only as molecules - ANSWER

C) ionizes 100% in water to give all ions In the equation: HF + H2O ----> H3O+ + F- A) H2O is a base and HF is its conjugate acid. B) H2O is an acid and HF is the conjugate base. C) HF is an acid and F- is its conjugate base. D) HF is a base and H3O+ is its conjugate acid.

E) HF is a base and F- is its conjugate acid. - ANSWER

C) HF is an acid and F- is its conjugate base. Which is the conjugate acid of NH3? A) NH2- B) NH4+ C) HNO D) H3O+ - ANSWER >>>>B) NH4+ What is the concentration of OH- ions in pure water? A) 0. B) 10- 14 C) 0. D) 7 E) 107 - ANSWER >>>>A) 0. If the OH- concentration is 0.001, determine the pH of solution A) 11 B) 3 C) 0. D) 7 E) 14 - ANSWER >>>>A) 11 The concentration of calcium ion in blood is found to be 1.21 mmol/L. What is this concentration in mEq/L? A) 0.605 mEq/L B) 1.21 mEq/L

A) thymine The bonding forces between two DNA strands in a double helix are A) peptide linkages B) phosphate bonds C) acetal bonds D) hydrogen bonds - ANSWER >>>>D) hydrogen bonds -phosphate-sugar-phosphate-sugar- is an example of a backbone. A) human B) chemical C) nucleic acid D) all the choices - ANSWER >>>>C) nucleic acid The sequence of one strand of DNA is 5' TCGATC 3'. The sequence of the complementary strand would be A) 5' AGCTAG 3' B) 5' TCGATC 3' C) 5' CTAGCT 3' D) 5' GCTAGC 3' E) 5' GATCGA 3 - ANSWER >>>>A) 5' AGCTAG 3' What is produced at the end of glycolysis? A) Pyruvic acid B) Archadonic acid C) Acetyl coA D) Fatty acid - ANSWER >>>>A) Pyruvic acid What is present in a nucleotide that is not found in a nucleoside? A) a phosphate B) a monosaccharide C) an alcohol group D) a nitrogen base - ANSWER >>>>A) a phosphate The process by which DNA makes RNA molecules is known as . A) replication B) transcription C) translation D) reverse transcription - ANSWER >>>>B) transcription which of the following is not an step in glucose metabolism A) Glycolysis B) citric acid cycle C) nitrogen cycle D) electron transport chain E) formation of acetyl coA - ANSWER >>>>C) nitrogen cycle Synthesis of proteins from aminoacids is an example of A) catabolism B) anabolism C) parabolism D) metabolism - ANSWER >>>>A) catabolism A kitten's normal body temperature is 102 ºF. Express this temperature in ºC A) 5.7 ºC B) 38.9 ºC C) 56.7 ºC D) 184 ºC - ANSWER >>>>B) 38.9 ºC What do you do to test a hypothesis? A) Guess B) Publish a Scientific Paper C) Disorganized D) Design an Experiment - ANSWER >>>>D) Design an Experiment A strong acid: A) does not dissolve in water B) ionizes slightly in water to give molecules and a few ions C) ionizes 100% in water to give all ions D) dissolves in water only as molecules - ANSWER >>>>C) ionizes 100% in water to give all ions In the equation: HF + H2O ----> H3O+ + F- A) H2O is a base and HF is its conjugate acid. B) H2O is an acid and HF is the conjugate base. C) HF is an acid and F- is its conjugate base. D) HF is a base and H3O+ is its conjugate acid. E) HF is a base and F- is its conjugate acid. - ANSWER >>>>C) HF is an acid and F- is its conjugate base. Which is the conjugate acid of NH3? A) NH2- B) NH4+ C) HNO D) H3O+ - ANSWER >>>>B) NH4+ What is the concentration of OH- ions in pure water? A) 0. B) 10- 14 C) 0. D) 7 E) 107 - ANSWER >>>>A) 0. If the OH- concentration is 0.001, determine the pH of solution A) 11 B) 3 C) 0. D) 7 E) 14 - ANSWER >>>>A) 11 The concentration of calcium ion in blood is found to be 1.21 mmol/L. What is this concentration in mEq/L? A) 0.605 mEq/L B) 1.21 mEq/L C) 2.42 mEq/L D) 4.84 mEq/L - ANSWER >>>>C) 2.42 mEq/L What will be the mass of hydrogen gas, H2 that is stored in a 15.0-L container at the pressure of 7. atm? The container is kept at 20.0°C. [Atomic weight of hydrogen is 2.00 g/mol.] A) 225 g

B) 137 g C) 80.0 g D) 9.35 g - ANSWER >>>>D) 9.35 g Sodium fluoride is added to drinking water. A 25-L sample of city water contains 0.018 g NaF. Express this concentration in molarity. A) 0.000017 M B) 0.00072 M C) 0.018 M D) 18 M - ANSWER >>>>A) 0.000017 M which of the following is a pure substance? A) Air B) water C) Soda pop D) Pizza - ANSWER >>>>B) water At 20 oC, chloroform (CHCl3) has a density of 1. g/mL. What is the mass of 7.52 mL of chloroform at 20 oC? A) 0.198 g B) 13.4 g C) 5.05 g D) 11.2 g - ANSWER >>>>D) 11.2 g A sample of magnesium weighs 10 grams. How many moles of magnesium are there in the sample? A) 10 moles B) 6 x 1023 moles C) 60 x 1023 atoms D) 0.4 moles - ANSWER >>>>D) 0.4 moles Which of the following is a physical change? A) melting of ice B) burning oxygen in air

C) rusting of iron D) baking cookies - ANSWER >>>>A) melting of ice Which set of coefficients balances the following equation: A) 1,1,5, B) 1,5,5, C) 1,5,5, D) 1,8,5,6 - ANSWER >>>>D) 1,8,5, A 40 mg dose of iodine-131 with a half-life of 8 days is administered to a patient. How long will it take for the iodine to decay so that there are only 5 mg remaining? A) 8 days B) 16 days C) 32 days D) 24 days - ANSWER >>>>D) 24 days A sample of nitrogen gas exerts a pressure of 9.80 atm at 32 degrees C. What would its temperature be (in degrees C) when its pressure is increased to 11.2 atm? A) 75.6 degrees C B) - 6.14 degrees C C) 48.7 degrees C D) 349 degrees C - ANSWER >>>>A) 75.6 degrees C Polocaine® is a local anesthetic administered by injection. A 50- mL, multidose vial is available containing 100 mg of mepivacaine hydrochloride. What is the %w/v concentration of the solution? A) 0% B) 0.2% C) 50% D) 5,000% - ANSWER >>>>B) 0.2%

C5H12 + O2 --> CO2 +

H2O

Which of the following is located in the nucleus of an atom? A) Protons B) Neutrons C) Electrons D) Protons and neutrons - ANSWER >>>>D) Protons and neutrons The geometry of the H2S molecule is best described as A) Trigonal planar B) Tetrahedral C) Bent D) Linera E) Trigonal pyramidal - ANSWER >>>>C) Bent Which compound is a unsaturated hydrocarbon? A) ethane B) ethyl chloride C) ethyne D) ethanol - ANSWER >>>>C) ethyne Which compound has the lowest boiling point? A) CH3CHO B) CH3CH3 C) CH3 CH2OH D) CH3CO CH2CH3 - ANSWER >>>>B) CH3CH3 A solution has a [H3O+] of 1 x 10-5. What is the [OH-] of the solution? A) 1 x 10- 5 B) 1 x 10- 7 C) 1 x 10- 9 D) 1 x 10-14 - ANSWER >>>>C) 1 x 10- 9 A person who suffers from hyperventilation will exhibit signs of A) respiratory acidosis.

B) respiratory alkalosis. C) metabolic acidosis. D) metabolic alkalosis. - ANSWER >>>>B) respiratory alkalosis. Which of the following molecules is smallest? A) sucrose B) glucose C) cellulose D) starch - ANSWER >>>>B) glucose All of the following are storage carbohydrates except A) starch B) glycogen C) amylopectin D) amylose E) cellulose - ANSWER >>>>E) cellulose Which two monosaccharides combine to form sucrose? A) α-glucose and α-fructose B) α-fructose and α-ribose C) α-glucose and β-glucose D) α-galactose and α-fructose - ANSWER >>>>A) α- glucose and α-fructose The base thymine is always paired with. A) Adenine B) Guanine C) Cytosine D) Thymine - ANSWER >>>>A) Adenine Saturated fatty acids A) are the predominant fatty acid in corn oil. B) have double bonds between carbon atoms of the fatty acids. C) have no double bonds between carbon atoms of the fatty acids.

D) are usually produced by plants. - ANSWER >>>>C) have no double bonds between carbon atoms of the fatty acids. Which statement about Lipid is incorrect A) Lipids are Organic molecules B) Lipids are insoluble in water C) Steroids and Eicosanoids are the examples of lipids D) omega -3 and omega -6 are the examples of lipids containing saturated fatty acids - ANSWER >>>>D) omega -3 and omega -6 are the examples of lipids containing saturated fatty acids Which of the following lipoprotein transports cholesterol from the liver to the tissues? A) HDLs B) LDLs C) VLDLs D) Chylomicrons E) Phospholipid - ANSWER >>>>B) LDLs The formula for ammonium chloride is A) NH4Cl4 B) NH4Cl C) NCl D) AmCl - ANSWER >>>>B) NH4Cl A stable atom that has a large nucleus most likely contains (Atoms and the Atomic Theory) - ANSWER >>>>A) more neutrons than protons Which statement best describes the light that will cause emission of electrons from a given metal through the photoelectric effect? (Atoms and the Atomic Theory) - ANSWER >>>>B) light with any intensity above a certain frequency

The atomic symbol mc025-1.jpg represents potassium- 40 (K-40), a radioactive isotope that has 19 protons and 21 neutrons. Which atomic symbol could represent an isotope that results from the decay of K-40? (Atoms and the Atomic Theory) - ANSWER >>>>A) 40/18 AR The table below gives the data that is needed to calculate the average atomic mass of element B. Isotope Atomic mass (amu) Relative abundance (%) B-10 10.01 19.91 B-11 11.01 80.09 Based on these data, what is the average atomic mass of element B? (Atoms and the Atomic Theory) - ANSWER >>>>C) 10.81 An electron in a hydrogen atom moves from level 3 to level 1. In a second hydrogen atom, an electron drops from level 2 to level 1. Which statement describes the most likely result? (Atoms and the Atomic Theory) - ANSWER >>>>A) The first atom emits light with more energy. Which diagram best illustrates the atomic model that Rutherford derived from his gold foil experiment? (Atoms and the Atomic Theory) - ANSWER >>>>A To explain the photoelectric effect, Albert Einstein linked the photoelectric effect to an idea from which scientist? (Atoms and the Atomic Theory) - ANSWER >>>>C) Max Planck A student writes the following statements about the relationship between mass defect and nuclear binding energy.

1. When an isotope's protons and neutrons come together to form a nuclide, a small amount of mass is converted to energy.
2. An equivalent amount of energy must be added to the nuclide to split apart its protons and neutrons.
3. Statement 1 describes the isotope's nuclear binding energy, and statement 2 describes the isotope's mass defect. Which statement is correct? (Atoms and the Atomic Theory) - ANSWER >>>>C) 1 and 2 only In which isotope is the strong nuclear force not strong enough to balance electrostatic forces between protons? (Atoms and the Atomic Theory) - ANSWER >>>>D) uranium- 238 Which is a correct comparison between the modern quantum model and John Dalton's model of the atom? - ANSWER >>>>C) The modern model recognizes particles in the atom, whereas Dalton's model does not. What did J. J. Thomson observe when he applied electric voltage to a cathode ray tube in his famous experiment? (Atoms and the Atomic Theory) - ANSWER >>>>B) The glass opposite of the negative electrode started to glow. The mass number of a chromium atom is 52 and it has 24 protons. How many neutrons does this atom have? (Atoms and the Atomic Theory) - ANSWER >>>>B) 28 Which of these properties is the best one to use for identification of an element? (Atoms and the Atomic Theory) - ANSWER >>>>B) the number of protons in the atomic nucleus