Chemistry for Allied Health Exam Preparation Guide
Course Introduction
Chemistry for Allied Health provides an introduction to the fundamental principles of chemistry with a focus on applications relevant to healthcare professions. Topics include atomic structure, chemical bonding, states of matter, solutions, acids and bases, and basic organic and biochemistry. The course emphasizes how chemical concepts underpin physiological processes, pharmacology, and the safe handling of chemicals in medical settings. It is designed to equip students with a foundational understanding of chemistry necessary for success in advanced allied health courses and clinical practice.
Recommended Textbook
Introductory Chemistry 4th Edition by Nivaldo J. Tro
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19 Chapters
1962 Verified Questions
1962 Flashcards
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Page 2
Chapter 1: The Chemical World
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Sample Questions
Q1) Which of the following is an example of an observation?
A)All matter is composed of small,indestructible particles called atoms.
B)Reactions occur due to the transfer of electrons.
C)When a can of soda pop is opened,a fizzing sound is heard.
D)Flammable objects contain phlogiston.
E)none of the above
Answer: C
Q2) A sample of wood with a mass of 3.0 grams was burned in an open dish.The ashes weighed 1.2 grams.
What happened to the rest of the wood?
A)The remaining mass was destroyed.
B)The remaining 1.8 grams was converted into gaseous compounds.
C)Nothing,the burned wood simply has a mass of 1.2 grams.
D)The remaining 1.8 grams was converted into heat.
E)none of the above
Answer: B
Q3) Theories can be tested and validated through experimentation.
A)True
B)False
Answer: True
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Chapter 2: Measurement and Problem Solving
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Sample Questions
Q1) The correct number of significant figures in the number 1.250100 is:
A)5
B)7
C)4
D)ambiguous
E)none of the above
Answer: B
Q2) The standard SI unit for temperature is:
A)Fahrenheit.
B)Kelvin.
C)Celsius.
D)atmospheres.
E)none of the above.
Answer: B
Q3) The typical problem-solving procedure involves four steps in the order:
A)sort,strategize,solve,check
B)strategize,solve,sort,check
C)check,strategize,sort,solve
D)solve,sort,check,strategize
Answer: A
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Chapter 3: Matter and Energy
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Sample Questions
Q1) Skim milk is a heterogeneous mixture.
A)True
B)False Answer: False
Q2) How many kilojoules are there in 95.0 Calories?
A)2.27 × 10<sup>7</sup>
B)3.97 × 10<sup>-</sup><sup>4</sup>
C)397
D)22.7
E)none of the above Answer: C
Q3) The odor of gasoline is a chemical property.
A)True
B)False Answer: False
Q4) An energy diagram that shows the products having higher energy than the reactants illustrates an endothermic reaction.
A)True
B)False Answer: True
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Chapter 4: Atoms and Elements
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Sample Questions
Q1) Protons and neutrons have similar masses and similar electrical charges.
A)True
B)False
Q2) All carbon atoms have exactly 6 protons.
A)True
B)False
Q3) The elemental symbol for manganese is Mg.
A)True
B)False
Q4) The number of protons in the nucleus of an atom
A)is called the atomic number.
B)is given the symbol "Z."
C)identifies the atom as a particular element.
D)is the same for all isotopes of an element.
E)all of the above
Q5) All elements have three or more naturally occurring isotopes.
A)True
B)False
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Chapter 5: Molecules and Compounds
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Sample Questions
Q1) The proper name for for HI is hydroiodic acid.
A)True
B)False
Q2) How many of each type of atom are there in the formula
Ca<sub>3</sub>(PO<sub>4</sub>)<sub>2</sub>?
A)Ca = 3,P = 1,O = 4
B)Ca = 3,P = 2,O = 4
C)Ca = 3,P = 2,O = 8
D)Ca = 3,P = 1,O = 8
E)none of the above
Q3) Which formula shows the proper use of parentheses?
A)Ca(F)<sub>2</sub>
B)Ca(SO<sub>4</sub>)
C)(NH<sub>4</sub>)<sub>3</sub>(PO<sub>4</sub>)
D)Ca(NO<sub>3</sub>)<sub>2</sub>
E)none of the above
Q4) In ionic compounds the net positive charge always equals the net negative charge.
A)True
B)False
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Chapter 6: Chemical Composition
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Sample Questions
Q1) The molar mass of a compound serves as a conversion factor between grams and moles.
A)True
B)False
Q2) Bauxite is an ore that contains the element aluminum.If you obtained 108 grams of aluminum from an ore sample that initially weighed 204 grams,what is the mass percent of aluminum in this bauxite ore?
A)52.9
B)15.6
C)0.53
D)47.1
E)none of the above
Q3) What is the molar mass of aluminum sulfate?
A)123.0 g/mol
B)278.0 g/mol
C)306.2 g/mol
D)315.2 g/mol
E)342.2 g/mol
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8
Chapter 7: Chemical Reactions
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Sample Questions
Q1) Cl<sup>-</sup>,Br<sup>-</sup>,and I<sup>-</sup> are mostly insoluble.
A)True
B)False
Q2) When compounds containing polyatomic ions dissolve,the polyatomic ions usually dissolve as intact units.
A)True
B)False
Q3) What type of a reaction occurs when a sodium hydroxide solution is mixed with an acetic acid solution?
A)precipitation
B)acid-base neutralization
C)oxidation-reduction
D)gas evolution
E)no reaction
Q4) A precipitate will form when you mix solutions of potassium chloride and lead nitrate.
A)True
B)False
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Chapter 8: Quantities in Chemical Reactions
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Sample Questions
Q1) If 16.0 grams of aluminum oxide were actually produced,what is the percent yield of the reaction below given that you start with 10.0 g of Al and 19.0 grams of O<sub>2</sub>?
Reaction: 4Al + 3O<sub>2</sub> 2Al<sub>2</sub>O<sub>3</sub>
A)75.0%
B)100%
C)84.7%
D)39.6%
E)not enough information
Q2) How many grams of the excess reactant are left over according to the reaction below given that you start with 10.0 g of Al and 19.0 grams of O<sub>2</sub>?
Reaction: 4Al + 3O<sub>2</sub> 2Al<sub>2</sub>O<sub>3</sub>
A)8.90
B)10.1
C)1.1
D)14.6
E)not enough information
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Page 10
Chapter 9: Electrons in Atoms and the Periodic Table
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Sample Questions
Q1) The element with a completely filled p-subshell is
A)Na.
B)Al.
C)P.
D)Ar.
E)none of the above
Q2) Which form of electromagnetic radiation has photons with the lowest energy?
A)Radio Waves
B)Microwaves
C)X-rays
D)Gamma Rays
E)Infrared Radiation
Q3) Which of the following atoms has the greatest metallic character?
A)Cs
B)Be
C)Cu
D)Ti
E)Au
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11
Chapter 10: Chemical Bonding
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Sample Questions
Q1) Which molecule listed below is a polar molecule?
A)NH<sub>3</sub>
B)H<sub>2</sub>O
C)HCN
D)all of the compounds
E)none of the compounds
Q2) The sulfate ion contains 28 valence electrons.
A)True
B)False
Q3) When a nonmetal bonds with a nonmetal
A)a molecular compound forms.
B)a covalent bond is involved.
C)electrons are shared.
D)all of the above are true
E)none of the above
Q4) The Lewis structure for O<sub>2</sub> contains a triple bond.
A)True
B)False
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Page 12
Chapter 11: Gases
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Sample Questions
Q1) What is the major component of the air we breathe?
A)nitrogen
B)oxygen
C)argon
D)carbon dioxide
E)smog
Q2) A 3.76 g sample of a noble gas is stored in a 2.00 L vessel at 874 torr and 25°C.What is the noble gas?
(R= 0.0821 L atm/ mol K)
A)He
B)Ne
C)Ar
D)Kr
E)not enough information
Q3) A pedometer is a device created by Torricelli to measure pressure.
A)True
B)False
Q4) Boyle's law states that as the volume of a gas increases so does the pressure.
A)True
B)False
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Chapter 12: Liquids,solids,and Intermolecular Forces
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Sample Questions
Q1) Atoms in a solid are always arranged in a well-ordered pattern.
A)True
B)False
Q2) NaCl is which type of solid?
A)molecular solid
B)ionic solid
C)covalent atomic solid
D)nonbonding atomic solid
E)metallic atomic solid
Q3) How many joules of heat are needed to completely vaporize 24.40 grams of water at its boiling point?
Given H<sub>vap</sub> = 40.6 kJ/mol
A)54.97
B)5.50 x 10<sub>4</sub>
C)29.98
D)3.00 x 10<sub>4</sub>
E)none of the above
Q4) The shapes of protein molecules are determined by intermolecular forces.
A)True
B)False
14
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Chapter 13: Solutions
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Sample Questions
Q1) If you prepare a solution by adding sufficient amount of solute so that after heating and cooling the solution there is a visible amount of solid solute left in the bottom of the beaker,the solution would be considered ________.
A)unsaturated.
B)saturated.
C)supersaturated.
D)thermally saturated.
E)none of the above
Q2) Calculate the molarity of a KCl solution made by dissolving 24.7 g of KCl in a total volume of 500.mL.
A)0.331
B)0.663
C)0.166
D)6.04
E)none of the above
Q3) A solution that is 35 percent by mass NaCl contains 35 grams of NaCl dissolved in 100 grams of water.
A)True
B)False
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Page 15
Chapter 14: Acids and Bases
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Sample Questions
Q1) A Bronsted-Lowry acid is a proton donor.
A)True
B)False
Q2) Which of the following acids is diprotic?
A)HClO<sub>4</sub>
B)HNO<sub>3</sub>
C)HI
D)H<sub>2</sub>SO<sub>4</sub>
E)none of the above
Q3) In a solution that has a pH = 7.0,
A)[H<sub>3</sub>O<sup>+</sup>] > [OH<sup>-</sup>]
B)[H<sub>3</sub>O<sup>+</sup>] < [OH<sup>-</sup>]
C)[H<sub>3</sub>O<sup>+</sup>] = [OH<sup>-</sup>]
D)[H<sub>3</sub>O<sup>+</sup>] + [OH<sup>-</sup>] = K<sub>w</sub>
E)none of the above
Q4) In a titration,the indicator is used to signal when the endpoint has been reached.
A)True
B)False
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Page 16
Chapter 15: Chemical Equilibrium
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Sample Questions
Q1) For the reaction 2 N<sub>2</sub>O(g) O<sub>2</sub> (g)+ 2 N<sub>2</sub> (g),what happens to the equilibrium position if the volume decreases?
A)shifts to the left
B)shifts to the right
C)does nothing
D)doubles
E)halves
Q2) For the reaction Ag<sub>2</sub>S(s) 2 Ag<sup>+</sup> (aq)+ S<sup>2-</sup> (aq),K<sub>eq</sub> = 2.4 × 10<sup>-4</sup>,and the equilibrium concentration of sulfide ion is [S<sup>2-</sup>] = 0.0023 M..What is [Ag<sup>+</sup>] at equilibrium?
A)0.052 M
B)0.32 M
C)0.015 M
D)0.10 M
E)none of the above
Q3) In an exothermic reaction,you can consider the emitted heat as a reactant in this system.
A)True
B)False
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Page 17
Chapter 16: Oxidation and Reduction
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Sample Questions
Q1) The driving force that causes electrons to flow through a wire is called current.
A)True
B)False
Q2) Assign the oxidation state of each atom in potassium chlorate,KClO<sub>3</sub>.
A)K = +1,Cl = +1,O = -2
B)K = -1,Cl = -1,O = +2
C)K = +1,Cl = +5,O = -2
D)K = +1,Cl = -1,O = 0
E)K = -1,Cl = +1,O = 0
Q3) What is the oxidation state of the underlined element in the reaction: Cl<sub>2</sub> + Mg \(\to\) MgCl<sub>2</sub>
A)0
B)+2
C)-2
D)+4
E)-4
Q4) Rusting of iron requires the presence of both oxygen and water.
A)True
B)False
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Chapter 17: Radioactivity and Nuclear Chemistry
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Sample Questions
Q1) Briefly distinguish between nuclear fission and nuclear fusion.
Q2) Alpha particles have lower penetrating power than the other types of radioactive emissions..
A)True
B)False
Q3) If an object has 6.25% of the C-14 (t<sub>1/2</sub> = 5,730 yrs)activity as a living organism,the age of the item is:
A)11,460 years.
B)17,190 years.
C)22,920 years.
D)28,650 years.
E)More information is needed.
Q4) A 1.2 kg sample of Th-228 has a half-life of 1.9 years.How many grams of Th is left after 11.4 years?
A)18.8
B)9.4
C)37.5
D)0
E)none of the above
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Chapter 18: Organic Chemistry
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Sample Questions
Q1) The formula for ethyl propyl ether is: CH<sub>3</sub>CH<sub>2</sub>OCH<sub>2</sub>CH<sub>2</sub>CH<sub>3</sub>.
A)True
B)False
Q2) Aldehydes and ketones both contain a carbonyl group.
A)True
B)False
Q3) How many isomers exist for the alkane whose molecular formula is C<sub>4</sub>H<sub>10</sub>?
A)1
B)2
C)3
D)4
E)none
Q4) Which of the following compounds is an alkyne?
A)C<sub>2</sub>H<sub>6</sub>
B)C<sub>3</sub>H<sub>6</sub>
C)C<sub>2</sub>H<sub>2</sub>
D)C<sub>5</sub>H<sub>12</sub>
E)none of the above
Page 20
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Chapter 19: Biochemistry
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Sample Questions
Q1) The region of the cell that contains specialized structures that carry out the cell's work is called ________.
A)nucleus
B)cell wall
C)cell membrane
D)cytoplasm
E)none of the above
Q2) A codon is a section of DNA that specifies a single amino acid.
A)True
B)False
Q3) Which of the following is a saturated fatty acid?
A)oleic acid
B)linoleic acid
C)linolenic acid
D)capric acid
E)All of the above are saturated fatty acids.
Q4) Fructose is an example of a hexose,a six-carbon sugar.
A)True
B)False
Q5) Summarize the main features of the four categories of protein structure.
Page 21
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