Basic Chemistry Exam Questions
Course Introduction
Basic Chemistry provides a foundational understanding of the principles and concepts that govern the composition, structure, and properties of matter. The course covers essential topics such as atomic and molecular structure, chemical bonding, stoichiometry, states of matter, chemical reactions, and the periodic table. Students will also explore introductory concepts in thermochemistry, acids and bases, and laboratory safety and techniques. Through a combination of lectures, laboratory experiments, and problem-solving exercises, this course equips students with the critical thinking and analytical skills necessary for further studies in chemistry and related scientific fields.
Recommended Textbook
Foundations of College Chemistry 13th Edition by Morris Hein
Available Study Resources on Quizplus
20 Chapters
2040 Verified Questions
2040 Flashcards
Source URL: https://quizplus.com/study-set/3379
Page 2
Chapter 1: An Introduction to Chemistry
Available Study Resources on Quizplus for this Chatper
56 Verified Questions
56 Flashcards
Source URL: https://quizplus.com/quiz/67054
Sample Questions
Q1) Which is a mixture?
A)copper wire
B)sugar
C)water
D)mud
Answer: D
Q2) Explain what chemistry is.
Answer: Chemistry is the study of matter and energy.Chemistry studies the composition and properties of matter.Chemistry also studies the transformations matter undergoes and the energy involvement in those changes.
Q3) Which state of matter consists of particles held together firmly but not rigidly? These particles are held together by strong attractive forces,are in close contact with one another,
But are able to flow by one another.
A)gas
B)liquid
C)solid
D)vapor
Answer: B
To view all questions and flashcards with answers, click on the resource link above.
Page 3
Chapter 2: Standards for Measurement
Available Study Resources on Quizplus for this Chatper
106 Verified Questions
106 Flashcards
Source URL: https://quizplus.com/quiz/67035
Sample Questions
Q1) Subtract 14.3 from 130.670.The difference expressed to the correct number of significant figures is
A)116
B)116.3
C)116.4
D)116.37
Answer: C
Q2) How many zeroes are significant in the number 0.03003?
A)1
B)2
C)3
D)4
Answer: B
Q3) 10<sup>4</sup>.When expressed properly the result is
A)1.51 X 10<sup>1</sup>
B)1.51 X 10<sup>-7</sup>
C)6.61 X 10<sup>1</sup>
D)6.61 X 10<sup>2</sup>
Answer: B
To view all questions and flashcards with answers, click on the resource link above.
Page 4
Chapter 3: Elements and Compounds
Available Study Resources on Quizplus for this Chatper
108 Verified Questions
108 Flashcards
Source URL: https://quizplus.com/quiz/67036
Sample Questions
Q1) Which type of element has the following general properties: low melting point and density, lacks luster,poor conductor of heat and electricity,and brittle?
A)metal
B)nonmetal
C)metalloid
D)transition element
Answer: B
Q2) A distinct substance composed of two or more elements combined chemically in a definite proportion by mass is a
A)homogeneous mixture.
B)heterogeneous mixture.
C)solution.
D)compound.
Answer: D
Q3) The halogens are the only periodic group that contains all three phases of matter under normal conditions.
A)True
B)False
Answer: True
To view all questions and flashcards with answers, click on the resource link above.
Page 5
Chapter 4: Properties of Matter
Available Study Resources on Quizplus for this Chatper
112 Verified Questions
112 Flashcards
Source URL: https://quizplus.com/quiz/67037
Sample Questions
Q1) How many joules of energy are released when 45.0 g of water cools from 18.0<sup>º</sup> C to 7.0<sup>º</sup> C?
A)495 J
B)791 J
C)2860 J
D)2070 J
Q2) Which is a chemical property of chlorine?
A)It has a sharp suffocating odor.
B)It is a yellowish-green gas.
C)It boils at -34.6<sup>º</sup>C.
D)It combines with sodium to form sodium chloride.
Q3) 4.184 joules are equal to one calorie.
A)True
B)False
Q4) A sample of metal with a mass of 650.0g is heated to 98.0<sup>º</sup>C and dropped into 500.0g of water at 28.4<sup>º</sup>C.The water temperature rises to 39.0<sup>º</sup>C.Assume there is no heat lost to the environment.
A.What is the amount of heat gained by the water?
B.What is the specific heat of the metal?
To view all questions and flashcards with answers, click on the resource link above. Page 6
Chapter 5: Early Atomic Theory and Structure
Available Study Resources on Quizplus for this Chatper
112 Verified Questions
112 Flashcards
Source URL: https://quizplus.com/quiz/67038
Sample Questions
Q1) One isotope of carbon has the atomic number 6 and the mass number 14.An atom of this isotope contains
A)8 protons
B)14 neutrons
C)6 neutrons
D)6 electrons
Q2) Which pair of formulas illustrates the Law of Multiple Proportions?
A)CH<sub>3</sub>Cl and CH<sub>3</sub>OH
B)H<sub>2</sub>O and HOH
C)CuCl<sub>2</sub> and CuBr
D)H<sub>2</sub>O and H<sub>2</sub>O<sub>2</sub>
Q3) How many protons are in a neutral atom of Ar-40?
A)18
B)22
C)40
D)58
Q4) What charge does an anion possess?
A)Positive
B)Negative
C)Neutral
To view all questions and flashcards with answers, click on the resource link above. Page 7
Chapter 6: Nomenclature of Inorganic Compounds
Available Study Resources on Quizplus for this Chatper
113 Verified Questions
113 Flashcards
Source URL: https://quizplus.com/quiz/67039
Sample Questions
Q1) ZnBr<sub>2</sub> is a binary compound.
A)True
B)False
Q2) All ions have a charge of zero.
A)True
B)False
Q3) Which is a binary compound?
A)O<sub>2</sub>
B)O<sub>3</sub>
C)NaClO<sub>3</sub>
D)NaCl
Q4) Which is an anion?
A)A copper (I)ion
B)A fluoride ion
C)A magnesium ion
D)An ammonium ion
Q5) All chemical compounds have a charge of zero.
A)True
B)False
Q6) Identify four elements that can form more than one cation.
Page 8
To view all questions and flashcards with answers, click on the resource link above.
Chapter 7: Quantitative Composition of Compounds
Available Study Resources on Quizplus for this Chatper
111 Verified Questions
111 Flashcards
Source URL: https://quizplus.com/quiz/67040
Sample Questions
Q1) How many carbon atoms have about the same mass as one mole of titanium atoms?
Q2) The compounds C<sub>2</sub>H<sub>2</sub> and C<sub>6</sub>H<sub>6</sub> have the same percent composition by mass.
A)True
B)False
Q3) A 30.5 g sample of a compound contains 9.29 g of nitrogen and the rest is oxygen.What is the empirical formula of the compound?
A)N<sub>2</sub>O<sub>3</sub>
B)N<sub>2</sub>O
C)NO
D)NO<sub>2</sub>
Q4) A compound with the empirical formula CH<sub>2</sub>O can have a molar mass of 150.15g.
A)True
B)False
Q5) A mole contains Avogadro's number of particles.
A)True
B)False
To view all questions and flashcards with answers, click on the resource link above. Page 9
Chapter 8: Chemical Equations
Available Study Resources on Quizplus for this Chatper
113 Verified Questions
113 Flashcards
Source URL: https://quizplus.com/quiz/67041
Sample Questions
Q1) Given the reaction: 4NH<sub>3</sub> + 3O<sub>2</sub> \(\rarr\)2N<sub>2</sub> + 6H<sub>2</sub>O.How many moles of N<sub>2</sub> are produced when1.0 mole of NH<sub>3</sub> is consumed?
A)0.50
B)1.0
C)2.0
D)4.0
Q2) Complete and balance the equation for each example in which a double-displacement reaction will occur.If no reaction will occur write the words "No Reaction" on the right side of the equation
A.AlBr<sub>3</sub> + AgNO<sub>3</sub> \(\rarr\)
B.ZnBr<sub>2</sub> + Na<sub>2</sub>S \(\rarr\)
C.NH<sub>4</sub>Br + AlI<sub>3</sub> \(\rarr\)
D.K<sub>2</sub>CO<sub>3</sub> + HCl \(\rarr\)
Q3) In the expression,2AlCl<sub>3</sub>,
A)2 and 3 are subscripts
B)2 and 3 are coefficients
C)2 is a subscript and 3 is a coefficient
D)3 is a subscript and 2 is a coefficient
To view all questions and flashcards with answers, click on the resource link above.
Page 10
Chapter 9: Calculations From Chemical Equations
Available Study Resources on Quizplus for this Chatper
101 Verified Questions
101 Flashcards
Source URL: https://quizplus.com/quiz/67042
Sample Questions
Q1) A mole ratio is the ratio between the number of moles of any two species involved in the chemical reaction.
A)True
B)False
Q2) What mass of hydrogen is produced when 4.00 moles of zinc react completely in the following equation? Zn + 2HCl \(\rarr\)ZnCl<sub>2</sub> + H<sub>2</sub>
A)0.505g
B)2.02g
C)6.06g
D)8.08g
Q3) How many molecules of water are produced when 3.00 moles of copper react completely in the following equation? Cu + 2H<sub>2</sub>SO<sub>4</sub> \(\rarr\) CuSO<sub>4</sub> + 2H<sub>2</sub>O + SO<sub>2</sub>
A)9.03 * 10<sup>23</sup>
B)3.61 * 10<sup>24</sup>
C)1.20 * 10<sup>24</sup>
D)2.71 * 10<sup>24</sup>
Q4) Nitrogen gas to water
To view all questions and flashcards with answers, click on the resource link above. Page 11
Chapter 10: Modern Atomic Theory and the Periodic Table
Available Study Resources on Quizplus for this Chatper
99 Verified Questions
99 Flashcards
Source URL: https://quizplus.com/quiz/67043
Sample Questions
Q1) How many valence electrons are present in the element with the following ground state electron configuration? 1s<sup>2</sup> 2s<sup>2</sup> 2p<sup>1</sup>
A)1
B)2
C)3
D)4
Q2) Which is not a noble gas?
A)Ra
B)Xe
C)Ar
D)Ne
Q3) What is the number of valence electrons in a halogen?
A)2
B)7
C)8
D)9
Q4) The second principal energy level contains s and p orbitals.
A)True
B)False
Q5) In the designation 4p<sup>3</sup>;what is the significance of 4,p,and 3?
Page 12
To view all questions and flashcards with answers, click on the resource link above.
Chapter 11: Chemical Bonds: the Formation of Compounds
From Atoms
Available Study Resources on Quizplus for this Chatper
102 Verified Questions
102 Flashcards
Source URL: https://quizplus.com/quiz/67044
Sample Questions
Q1) Atoms of the nonmetallic elements generally form ions by
A)gaining electrons,forming positive ions.
B)gaining electrons,forming negative ions.
C)losing electrons,forming positive ions.
D)losing electrons,forming negative ions.
Q2) Which series is ranked in order of increasing electronegativity?
A)O,S,Se,Te
B)Cl,S,P,Si
C)Sr,Sn,N,O
D)C,Si,P,Se
Q3) How many valence electrons are present in an atom of lithium in the ground state?
A)1
B)2
C)3
D)7
Q4) The series Ba,Cs,P,O is arranged by decreasing size.
A)True
B)False
To view all questions and flashcards with answers, click on the resource link above. Page 13
Chapter 12: The Gaseous State of Matter
Available Study Resources on Quizplus for this Chatper
100 Verified Questions
100 Flashcards
Source URL: https://quizplus.com/quiz/67045
Sample Questions
Q1) Sulfur trioxide gas is produced from sulfur dioxide gas and oxygen gas.<sup> </sup>
A.Write a balanced chemical equation for this reaction.
B.What mass of sulfur trioxide will be produced from the complete reaction of 15.0 L of oxygen in this reaction?
C.What volume of sulfur trioxide will be produced from the complete reaction of 15.0 L of oxygen in this reaction?
Q2) A sample of gas has a volume of 400.mL at STP.What will be its volume at 20.0<sup> </sup><sup>°</sup><sup> </sup>C and700.torr?
A)466 mL
B)343 mL
C)60.1 mL
D)2660 mL
Q3) How many moles are present in 30.0 L of helium gas at STP?
A)0.179 moles
B)0.747 moles
C)1.34 moles
D)7.47 moles
To view all questions and flashcards with answers, click on the resource link above. Page 14
Chapter 13: Liquids
Available Study Resources on Quizplus for this Chatper
100 Verified Questions
100 Flashcards
Source URL: https://quizplus.com/quiz/67046
Sample Questions
Q1) What is the percent water in MgSO<sub>4</sub>.7H<sub>2</sub>O?
A)2.05 %
B)51.2 %
C)0.488 %
D)48.8 %
Q2) At the same temperature,all liquids have the same vapor pressure.
A)True
B)False
Q3) In a system at equilibrium between the liquid and gas phases
A)the rate at which particles change from gas to liquid exceeds the rate at which they change from liquid to gas.
B)the rate at which particles change from liquid to gas exceeds the rate at which they change from gas to liquid.
C)the rate at which particles change from gas to liquid equals the rate at which they change from liquid to gas.
D)particles stop changing phase.
Q4) Water purification often involves screening,flocculation and sedimentation,sand filtration,aeration,and disinfection.Explain what is meant by each of these terms.
To view all questions and flashcards with answers, click on the resource link above.
Page 15
Chapter 14: Solutions
Available Study Resources on Quizplus for this Chatper
100 Verified Questions
100 Flashcards
Source URL: https://quizplus.com/quiz/67047
Sample Questions
Q1) As solute surface area increases,the rate of dissolving A)increases.
B)decreases.
C)remains the same.
Q2) When compared to pure water,aqueous solutions always have
A)higher boiling point and higher freezing point.
B)lower boiling point and lower freezing point.
C)higher boiling point and lower freezing point.
D)lower boiling point and higher freezing point.
Q3) As pressure increases,the solubility of a gas in water
A)increases.
B)decreases.
C)remains the same.
Q4) Which is not a colligative property?
A)Boiling point
B)Freezing point
C)Density
D)Osmotic pressure
Q5) A sulfuric acid solution that is 34.0 % by mass has a density of 1.25 g/mL. What is the molarity of the solution?
16
To view all questions and flashcards with answers, click on the resource link above.
Chapter 15: Acids, Bases, and Salts
Available Study Resources on Quizplus for this Chatper
100 Verified Questions
100 Flashcards
Source URL: https://quizplus.com/quiz/67048
Sample Questions
Q1) What is the concentration of calcium ion in a 2.0 M solution of calcium chloride?
A)1.0 M
B)2.0 M
C)3.0 M
D)4.0 M
Q2) A 0.1 M HNO<sub>3</sub> solution and a 0.1 M HNO<sub>2</sub> solution have the same pH.
A)True
B)False
Q3) What is the conjugate base of HS<sup> -1</sup>?
A)H<sub>2</sub>S
B)S<sup> -2</sup>
C)H<sup> +1</sup>
D)OH<sup> -1</sup>
Q4) A solution of an acid,with a general formula HA,contains 0.400 moles of H<sup> +1</sup>.The acid solution is neutralized by 43.4 mL of sodium hydroxide.What is the molarity of the sodium hydroxide solution?
To view all questions and flashcards with answers, click on the resource link above. Page 17
Chapter 16: Chemical Equilibrium
Available Study Resources on Quizplus for this Chatper
101 Verified Questions
101 Flashcards
Source URL: https://quizplus.com/quiz/67049
Sample Questions
Q1) Which salt would produce a basic solution?
A)KBr
B)NaNO<sub>2</sub>
C)CuCl
D)NH<sub>4</sub>Cl
Q2) The sodium salts of all anions listed below yield basic solutions when dissolved in water except<sup> </sup>
A)fluoride
B)chloride
C)cyanide
D)nitrite
Q3) Aqueous solutions of NaBr,K<sub>2</sub>SO<sub>4</sub>,and NaF will be neutral.
A)True
B)False
Q4) The equilibrium constant can change significantly with a change in A)concentration.
B)catalyst.
C)temperature. D)pressure.
To view all questions and flashcards with answers, click on the resource link above. Page 18
Chapter 17: Oxidationreduction
Available Study Resources on Quizplus for this Chatper
100 Verified Questions
100 Flashcards
Source URL: https://quizplus.com/quiz/67050
Sample Questions
Q1) Balance these equations by the change in oxidation-number method.
A.KMnO<sub>4</sub> + HCl \(\rarr\)KCl + MnCl<sub>2</sub> + Cl<sub>2</sub> + H<sub>2</sub>O
B.MnO<sub>2</sub> + HCl \(\rarr\) MnCl<sub>2</sub> + H<sub>2</sub>O + Cl<sub>2</sub>
Q2) In the following reaction,the copper(II)ions Ni + Cu<sup>+2</sup> \(\rarr\) Ni<sup>+2</sup> + Cu
A)gain electrons.
B)lose electrons.
C)gain protons.
D)lose protons.
Q3) What is the oxidation number of bromine in Br<sub>2</sub>?
A)0
B)-1
C)+7
D)-5
Q4) In oxidation,the oxidation number of an element increases in a positive direction as a result of gaining electrons.
A)True
B)False
Page 19
To view all questions and flashcards with answers, click on the resource link above.
Chapter 18: Nuclear Chemistry
Available Study Resources on Quizplus for this Chatper
102 Verified Questions
102 Flashcards
Source URL: https://quizplus.com/quiz/67051
Sample Questions
Q1) If Rn-222 loses an alpha particle the resulting isotope is
A)Pb-218
B)At-222
C)Fr-222
D)Po-218
Q2) What type of emission causes C-14 to decay to N-14?
A)Alpha
B)Beta
C)Positron
D)Gamma
Q3) What is the half-life of a radioisotope if a 0.800 g sample decays to 0.100 g in 12.0 minutes?
A)4.00 minutes
B)3.00 minutes
C)36.0 minutes
D)48.0 minutes
Q4) The half-life of Sr-90 is 28 years.A sample of Sr-90 tested in 1960 emitted 400 counts per minute.
In what year will the sample emit 25 counts per minute?
To view all questions and flashcards with answers, click on the resource link above. Page 20
Chapter 19: Introduction to Organic Chemistry Online Only
Available Study Resources on Quizplus for this Chatper
99 Verified Questions
99 Flashcards
Source URL: https://quizplus.com/quiz/67052
Sample Questions
Q1) What is the maximum number of covalent bonds a carbon atom can form?
A)One
B)Two
C)Three
D)Four
Q2) The number of possible isomers of C<sub>6</sub>H<sub>14</sub> is
A)3
B)5
C)6
D)8
Q3) What type of compound is composed of only carbon and hydrogen atoms?
A)Carbohydrate
B)Hydrocarbon
C)Ester
D)Carboxylic acid
Q4) C<sub>2</sub>H<sub>2</sub> is
A)methane.
B)methyne.
C)ethane.
D)ethyne.
21
To view all questions and flashcards with answers, click on the resource link above.
Chapter 20: Introduction to Biochemistry Online Only
Available Study Resources on Quizplus for this Chatper
105 Verified Questions
105 Flashcards
Source URL: https://quizplus.com/quiz/67053
Sample Questions
Q1) Fats and oils are prepared from one molecule of glycerine and A)one molecule of fatty acid.
B)two molecules of fatty acid.
C)three molecules of fatty acid.
D)four molecules of fatty acid.
Q2) Name the peptides:
A.Val-Tyr-Leu
B: Gly-Ala-Phe
Q3) Glucose and galactose are A)riboses. B)hexomers.
C)isomers.
D)peptomers.
Q4) Fats are solid at room temperature because
A)they contain a large amount of hydrogen bonds.
B)they contain a higher proportion of unsaturated fatty acids.
C)they contain a large amount of carbon-hydrogen bonds.
D)they contain a higher proportion of saturated fatty acids.
Q5) Explain how RNA and DNA are different.
Q6) Draw the structure of the dipeptide formed by serine and proline.
To view all questions and flashcards with answers, click on the resource link above. Page 22