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CHEM 120 TESTS COMPILATION BUNDLE

CHEM 120 TESTS COMPILATION BUNDLE

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Chem 120 Exam 4| 52 Questions | With Complete Solutions

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The major products of carbohydrate digestion are... correct answer: monosaccharides A key organ in regulating blood glucose levels is the... correct answer: liver The normal blood sugar level, for an adult, measured after a fast of 8-12 hours is... correct answer: 70-110mg/100mL Blood Su...

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Chem 120 Exam #2| 74 Questions| With Complete Solutions

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chemical bond correct answer: the attractive forces that holds two atoms together in a more complex unit ionic bond correct answer: a chemical bond formed through the transfer of one or more electrons from one atom to another atom, metal and nonmetal ionic compound correct answer: a compoun...

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Chem 120 Exam 1| 64 Questions| With Complete Solutions

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SI unit for Temperature correct answer: C F correct answer: (9/5 C) + 32 C correct answer: 5/9 (F -32) K correct answer: C+273.15 density correct answer: mass/volume 1 mL correct answer: =1cm^3 = 1cc percent error correct answer: difference from known value/known value x 100...

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Chem 120 Final| 100 Questions| With Complete Solutions

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Significant Figure correct answer: a digit that is either reliably known or closely estimated conversion factors correct answer: relationship between two quantities expressed as a fraction (1 inch/2.45cm) element correct answer: the most basic form of matter that exists under ordinary con...

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CHEM 120 Final Exam| 171 Questions| With Complete Solutions

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How many bonds can nitrogen have? Which rule or principle should be used? A) Five bonds; octet rule. B) Three bonds; octet rule. C) Three bonds; the Hund's rule. D) Five bonds; the Aufbau Principle. correct answer: B When two hydrogen atoms meet, they will attract to each other and form a...

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chem 120 final exam study guide| 127 Questions| With Complete Solutions

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chemistry correct answer: the science that tries to understand how matter behaves by studying how atoms and molecules behave scientific method correct answer: ways of learning that emphasizes observation and experimentation (self correcting) observation correct answer: we go out in nature a...

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Chem 120- Exam #1 Questions With Complete Solutions

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What is a good scientific definition of a chemical? correct answer: Chemical- any substance made up of one or more elements from the periodic table What is the difficulty in defining the chemical industry in terms of the periodic chart? correct answer: The definition of a chemical is too broad....

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ACHS Chem 120 Exam Questions With Complete Solutions

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Which of these contributions did alchemists of the Middle Ages make to modern science? correct answer: -Sun-centered universe and metallurgy -Metallurgy and the development of scientific techniques -The scientific method and law of conservation of mass -Law of conservation of matter and first at...

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Chem 120 Final| 153 Questions| With Complete Solutions

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Levelling Effect correct answer: the inability of a solvent to differentiate amongst the relative strength of all acids OH- correct answer: the strongest base possible H3O+ correct answer: the strongest acid possible Differentiating effect correct answer: the ability of a solvent to dif...

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CHEM 120 Exam #1 Questions With Complete Solutions

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define matter correct answer: anything that has mass and takes up space what is not considered matter? correct answer: light, heat, electricity definite shape, definite volume correct answer: solid indefinite shape, definite volume correct answer: liquid indefinite shape, indefinite ...

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Chem 120 Final Exam Questions With Complete Solutions

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molecular mass (molecular weight) correct answer: the sum of the atomic masses, in atomic mass units, of all the atoms in the formula of a compound empirical formula correct answer: a chemical formula showing the ratio of elements in a compound rather than the total number of atoms Avogadro...

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Chem 120 final exam questions With Complete Solution

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What is the correct order of melting points for the following alkanes, from highest to lowest temperature? correct answer: heptane > hexane > ethane > methane 2. Given an alkane that contains 25 carbon atoms. How many hydrogen atoms are present in its structure? a) correct answer: ) 52...

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CHEM 120 FINAL EXAM QUESTIONS WITH COMPLETE SOLUTION

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ionic compounds correct answer: -deals with charged particles -oppositely charged particles are attracted to each other -look for presence of metals and polyatomic ions molecular compounds correct answer: -share electrons -nonmetals -no polyatomic ions unless its an acid Type I metals co...

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Chamberlain Chem 120 quiz #2 chapter 3 Questions With Complete Solutions

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what is the formula for ionic compound correct answer: Xm+ Yn-= XnYm name the ionic compound Na+ I- correct answer: NaI name the ionic compound Ba2+ O2- correct answer: BaO Name ionic compounds Mg2+ N-3 correct answer: Cross multiply Mg3N2 (numbers are subscript) What is an ionic com...

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Chamberlain Final Chem 120 Questions With Complete Solutions.

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Polyatomic ions correct answer: ions that are made of more than one atom Nitrate correct answer: NO3- Nitrite correct answer: NO2- bicarbonate (hydrogen carbonate) correct answer: HCO3- Sulfate correct answer: SO4 2- Sulfite correct answer: SO3 2- Carbonate correct answer: C...

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Chem 120 Chamberlain final Questions With Complete Solutions.

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Saturated correct answer: alkane Unsaturated correct answer: alkenes and alkynes CH3CH2CH2CH2CH3 correct answer: Pentane C2H6 correct answer: Ethane what are your terminal carbons correct answer: CH3 CH3-CH2-CH3 | CH3 correct answer: 2-methyl-propane T or F: the branch ne...

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CHEM 120 Chamberlain EXAM 1 Questions With Complete Solutions

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Hypothesis correct answer: a testable educated guess Experiment correct answer: how we test hypotheses Variable correct answer: Idea to be tested (only one) Control correct answer: Something the variable is tested against Experimental protocol correct answer: How do you do the test?...

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Chem 120 Test 1 (JMU) Questions With Complete Solutions

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Chemistry correct answer: The study of matter and the changes it undergoes Matter correct answer: Anything that has mass and occupies space Element correct answer: Basic material that can NOT be broken down into simpler substance What is matter made up of? correct answer: Atoms and Mole...

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Chem 120 JMU Wilson Test 1 Questions With Complete Solutions

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Fahrenheit - 1.8(C) + 32 Celsius - (F-32)/1.8 Physical property - properties can be observed without changing the identity of the substance under observation Chemical property - properties can only be observed during a change int he identity of the substance under observation examples of...

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JMU Chem 120 Final Questions With Complete Solutions

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scientific notation correct answer: 3.94 x 10⁷= 0. = 8.0 x 10⁻⁶ measured v. exact numbers correct answer: measured = obtained through measurement and are uncertain exact = obtained through counting and are certain precision v. accuracy correct answer: precision = close to each othe...

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CHEM 120 unit 1| 59 Questions| With Complete Solutions

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An object has a mass of 7.748 g and a volume of 5.6 mL. What is its density? Give your answer to the nearest tenths place correct answer: 1.4 g/mL An object has a mass of 12.876 g and a density of 1.5 g/mL. What is its volume? Give your answer to the tenths place correct answer: 8.6 mL An ob...

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chem 120 exam 1 Questions And Answers

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The metric prefix which means 0.01 (one-one hundredth) is centi How many meters are in 1 kilometer? 1000 The amount of matter in an object is its mass Which of the following has the largest density? 1.8 g object with a volume of 1.0 mL A piece of metal is believed to be eithe...

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CHEM 120 Exam 1 Questions And Answers

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Celsius formula - C= (F-32)/1.8 Kelvin formula - K=C+273.15 density formula and units - D (g/mL, g/L, Kg/m^3)= M (kg) / V (m^3, cm^3, L , mL) Precision - a measure of how close a series of measurements are to one another Accuracy - how close a measurement is to the true value Law of C...

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CHEM 120L Study Guide Questions With Complete Solutions

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What is the recommended protective clothing for the lab? correct answer: Safety goggles: -slash proof safety goggles are required and give the max protection from spills and flying objects Footwear: -shoes that fully cover the feet Lab coats: -not required but strongly recommended to pro...

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Chem 120L Exam Review Questions With Complete Solutions

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What do you need to accomplish before you can start the lab? correct answer: WHIMIS Things to do to prevent accidents/injury? correct answer: Pay attention to instructions Never leave equipment unattended Keep work area clean Wipe spills immediately No personal belongings on top Learn disp...

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CHEM 120 Exam 4 Questions With Complete Solutions

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Hydrocarbons correct answer: contain only carbon and hydrogen Alkanes correct answer: single bonds, saturated, sp3 hybrid, tetrahedral, 109.5 deg, sigma bonds only, free rotation about C Alkenes correct answer: double bonds, unsaturated, sp2 hybrid, trigonal planar, flat, rigid about C, pi ...

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CHEM-120 CHAMBERLAIN FINAL EXAM| 526 QUESTIONS| WITH COMPLETE SOLUTIONS

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Chemistry correct answer: The study of the properties of matter and how matter changes Basic Unit in Chemistry correct answer: atom Types of Chemistry correct answer: Green Chemistry Sustainable Chemistry green chemistry correct answer: uses materials and processes that are intended t...

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