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CHM120 Chemistry Practice Exam With Answers (28 Solved Questions)

Build exam mastery with CHM120 Chemistry Practice Exam With Answers, a complete past exam study resource.

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CHM 120Exam2: Chapters 5,6,7,81Exam2Total Points:60PART 1:Multiple Choice questions:Q1-24. (2point each)1.Chemical reactions (equations) show the followinga.Reactantsb.Productsc.Physical state of each (gas or liquid or solid)d.All of the above2.The following is true for a molea.It is also known as Avagadro’s numberb.It contains 6.022 * 1023moleculesc.It contains mass equivalent to molecular weightd.All of the above are true3.In balancing chemical equations, the coefficients are used toa.Show number of molesb.Show volume of each in litersc.Show amount of each in gramsd.Showtemperature at which the substance is stable4.2H2 + O22H2O means thata.2 grams of H2 g and 1 gram of O2 gas combine to form 2 grams of water.b.2 moles of H2 g and 1 mole of O2 gas combine to form 2 moles ofwater.c.2 grams of H2 g and 1 gram of O2 gas combine to form 2 moles of water.d.2 molecules of H2 g and 1 molecule of O2 gas combine to form 2 molecules of water.5.2H2 + O22H2O. In this equation, correct method to calculate molecular mass ofwater isa.2[2(mass of hydrogen) + mass of oxygen]b.2(mass of hydrogen gas) + mass of oxygen gasc.2(mass of hydrogen) + mass of oxygen

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Document Details

University
Portage Learning
Course
CHM 120
Subject
Chemistry

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