Chem 1311 exam 1 - Study guides, Class notes & Summaries
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CHEM 1311 Exam 1 Questions With Complete Solutions
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chemical property correct answer: the way substances may change/react to become another substance 
 
physical property correct answer: can be observed without any change to identification and/or composition 
 
matter correct answer: anything that has mass and occupies space 
 
reactivity, stability, flammability, toxicity, fermentation correct answer: examples of chemical properties 
 
malleability, ductility, conductivity, viscosity, boiling/melting point correct answer: examples of physic...
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Chem 1311 Exam 1 ACC Professor Rahman 2023 with 100% correct answers
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Of the following only,_________ is an extensive property. 
 
-Temperature 
-Boiling point 
-Freezing point 
-Density 
-Volume correct answersVolume 
 
In the following list, only __________ is not an example of a chemical reaction. 
 
-the production of hydrogen gas from water 
-chopping a log into sawdust 
-the tarnishing of a copper penny 
-burning a plastic water bottle 
-charging a cellular phone correct answerschopping a log into sawdust 
 
In which of the following numbers are AL...
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CHEM 1311 Exam Detailed Questions And Expert Answers
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CHEM 1311 Exam Detailed Questions And Expert Answers
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Chem 1311 Exam 2 ACC Professor Rahman with correct answers
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Propane (C₃H₈) reacts with oxygen in the air to produce carbon dioxide and water. In a particular experiment, 38.0g of Carbon Dioxide are produced from the reaction 22.05g of propane with excess oxygen. What is the % yield in this reaction? 
 
-94.5 
-66.0 
-86.4 
-38.0 
-57.6 correct answers57.6 
 
Gaseous argon has a density of 1.40 g/L at standard conditions. How many argon atoms are in 1.00L of argon gas at standard conditions? 
 
-4.76x10²² 
-6.02x10²³ 
-3.43x10²⁵ 
-1.59x1...
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Chem 1311 Exam 3 ACC Professor Rahman 2023 with 100% correct answers
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A __________ ΔH corresponds to an __________ process. 
 
-zero, endothermic 
-positive, exothermic 
-negative, endothermic 
-zero, exothermic 
-positive, endothermic correct answerspositive, endothermic 
 
Which one of the following is NOT considered a fossil fuel? 
 
-natural gas 
-hydrogen 
-anthracite coal 
-petroleum 
-crude oil correct answershydrogen 
 
Which one of the following statements is FALSE? 
 
-The enthalpy change for a reaction is equal in magnitude, but opposite in si...
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CHEM 1311 EXAM 1 2023 with 100% correct answers
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The Greeks correct answerstried to explain chemical changes, proposed four fundamental substances (earth, fire, water, air), first proposed atoms as fundamental particles 
 
The Alchemists correct answers"pseudoscience"/tried to change a base metal of lead into gold 
 
Robert Boyle correct answersFirst "chemist"/quantitative measurements on gases/proposed the concept of elements 
 
Joseph Priestly correct answersdiscovered oxygen/carefully studied chemical reactions 
 
Law of Mass Conservati...
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Chem 1311 Exam 1 2023 with 100% complete solutions
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Chemistry correct answersThe study of matter, its properties, and the changes that matter undergoes 
 
Matter correct answersThe physical material of the universe; it is anything that has mass and occupies space 
 
Property correct answersAny characteristic that allows us to recognize a particular type of matter and to distinguish other types 
 
Atoms correct answersBuilding blocks of matter 
 
Molecules correct answerstwo or more atoms are joined in specific shapes 
 
By its physical state and ...
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CHEM 1311 Exam 1 Questions with Correct Answers
- Exam (elaborations) • 5 pages • 2023
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CHEM 1311 Exam 1 Questions with Correct Answers 
chemical property - Answer-the way substances may change/react to become another substance 
 
physical property - Answer-can be observed without any change to identification and/or composition 
 
matter - Answer-anything that has mass and occupies space 
 
reactivity, stability, flammability, toxicity, fermentation - Answer-examples of chemical properties 
 
malleability, ductility, conductivity, viscosity, boiling/melting point - Answer-examples...
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Chem 1311 exam 1 Questions And Answers
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Chem 1311 exam 1 Questions And Answers
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Chem 1311 Exam 2 Questions With Graded Answers
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Solutions can exist in all 3 physical states correct answer: Solid: metal alloys (2 or more metals) 
Gas: Ex: Air — made of nitrogent oxygen and other gases 
Liquid: this is what we will be primarily discussing in this chapter, mostly solutions where water is the solvent AKA aqueous solutions 
 
Nonpolar solvents dissolve_______ correct answer: Nonpolar solutes 
 
Polar solvents dissolve______ correct answer: Polar solutes and many iconic solutes 
 
Polar correct answer: unequal sharing of...
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