Formula unit vs molecule - Study guides, Class notes & Summaries
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RNAS C Practice Test Review 437 Questions with Verified Answers,100% CORRECT
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RNAS C Practice Test Review 437 Questions with Verified Answers 
 
A capacitor and resisitor in parallel - CORRECT ANSWER will have same voltage across since in parallel. 
if in series, voltage drops would occur 
 
they can be treated together 
 
If the absolute pressure of a gas is increased from 3 atm to 4 atm at constant volume, then the absolute temperature of the gas will increase by: 
A. 25%. 
B. 33%. 
C. 67%. 
D. 75% - CORRECT ANSWER B. Assuming the validity of the Ideal-Gas law, PV = n...
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PHA 317 Exam 1 | Questions and Answers (Complete Solutions)
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PHA 317 Exam 1 | Questions and Answers (Complete Solutions) How closely a measured value is to the correct value is ___ Accuracy How closely individual measurements are relative to each other is ___ Precision Regarding significant figures, ALL nonzero digits are ___ (i.e. - 12.768) Significant Regarding significant figures, a zero is ___ when followed by a nonzero number. (i.e. - 12.076) Significant Regarding significant figures, a zero after a decimal and before a nonzero number is ___ (i.e. ...
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CHEM 1110- Exam 3 with Latest Questions and Answers
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CHEM 1110- Exam 3 with Latest Questions and Answers 
 
Stoichiometry ANSWER The mole ratios among the reactants and products in a chemical equation 
 
Chemical Formula ANSWER A notation for representing the elemental composition of a pure substance using the symbols of the elements and subscripts indicate the relative number of atoms of each element in the substance. 
-shows ratio of elements in a compound 
 
Chemical Equation ANSWER A description of the identities and proportions of the reacta...
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Honors Chemistry Final Exam Quizlet Guaranteed A+
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Honors Chemistry Final Exam Quizlet Guaranteed A+ 
Atom ️The basic unit of a chemical element. 
Molecule ️Two or more atoms held together by covalent bonds 
Physical change ️A change of matter from one phase to another without a change in chemical 
properties (melting, freezing, boiling, condensing, dissolving) 
Phase change ️A change from one state (solid or liquid or gas) to another without a change in 
chemical composition 
Chemical change ️A change that produces matter with ...
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Chem 219 Unit 1 Exam Questions With 100% Correct Answers
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Chem 219 Unit 1 Exam Questions With 
100% Correct Answers 
catenation - answerthe bonding of an element to another atom of the same element (carbon 
likes to do catenation) 
What controls the properties and reactivity of an organic molecule? - answerThe molecule's 
shape and composition 
Why do atoms form bonds to other atoms? What is the driving force for atoms to join together? - 
answerenergetic stability 
What does energetically stable mean? - answerAtoms of elements are more stable when th...
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Chem 219 Unit 1 Exam Questions With 100% Correct Answers
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Chem 219 Unit 1 Exam Questions With 
100% Correct Answers 
catenation - answerthe bonding of an element to another atom of the same element (carbon 
likes to do catenation) 
What controls the properties and reactivity of an organic molecule? - answerThe molecule's 
shape and composition 
Why do atoms form bonds to other atoms? What is the driving force for atoms to join together? - 
answerenergetic stability 
What does energetically stable mean? - answerAtoms of elements are more stable when th...
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Chemistry II ACS Exam 91 Questions with Verified Answers,100% CORRECT
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Chemistry II ACS Exam 91 Questions with Verified Answers 
 
Phase - CORRECT ANSWER a physically distinct and homogenous part of a system 
 
intermolecular forces - CORRECT ANSWER the attractive and repulsive forces among the particles-molecules, atoms or ions in a sample of matter 
 
heat of vaporization - CORRECT ANSWER the enthalpy change occurring when 1 mol of a liquid substance vaporizes 
 
heat of fusion - CORRECT ANSWER the enthalpy change occurring when 1 mol of a solid melts 
 
heat of ...
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Chem 219 Unit 1 Exam Questions With 100% Correct Answers
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Chem 219 Unit 1 Exam Questions With 
100% Correct Answers 
catenation - answerthe bonding of an element to another atom of the same element (carbon 
likes to do catenation) 
What controls the properties and reactivity of an organic molecule? - answerThe molecule's 
shape and composition 
Why do atoms form bonds to other atoms? What is the driving force for atoms to join together? - 
answerenergetic stability 
What does energetically stable mean? - answerAtoms of elements are more stable when th...
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AAMC FL 1 FULL REVIEW- Chem/Phys exam questions fully solved & verified for accuracy 2024
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In the chromatography of the reaction mixture, water absorbed on cellulose functioned as the stationary phase. What was the principal factor determining the migration of individual components in the sample? 
 
A.Hydrogen bonding 
B.Solute concentration 
C.Stationary phase concentration 
D.Thickness of paper 
B and D are dumb options. Knock them out. 
 
hydrogen bonding to the stationary phase will determine the relative rate of migration of the various components in the sample. 
 
When thinking ...
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BIOCHEM MODULE 4 EXAM | QUESTIONS & ANSWERS (VERIFIED) | LATEST UPDATE | GRADED A+
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BIOCHEM MODULE 4 EXAM | QUESTIONS 
& ANSWERS (VERIFIED) | LATEST 
UPDATE | GRADED A+ 
which of the following monosaccharides is not an aldose? 
a. erythrose 
b. dihydroxyacetone 
c. glucose 
d. glyceraldehyde 
e. ribose 
Correct Answer: b. dihydroxyacetone 
when two monosaccharides are epimers: 
a. they differ only in the configuration about the penultimate carbon 
b. one is an aldose, the other a ketose 
c. they differ only in the configuration about one carbon atom 
d. they form o-glyco...
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