Chemistry > EXAM REVIEW > Chem 1311 Exam 1 Review (GRADED A) Questions and Answers | 100% Verified (All)

Chem 1311 Exam 1 Review (GRADED A) Questions and Answers | 100% Verified

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Chem 1311 Review 1Multiple ChoiceIdentify the choice that best completes the statement or answers the question. ____1.Which of the following statements isincorrect?a.A body in motion possesses kineti... c energy becauseof its motion.b.An object possesses potential energy because of itsposition or composition.c.Nuclear energy is an important kind of potentialenergy.d.Chemical reactions and physical changes thatrelease energy to their surroundings areendothermic.e.The Law of Conservation of Matter and Energystates that the combined amount of matter andenergy in the universe is fixed. ____2.A braking automobile converts kinetic energy into heat in the brake pads. This is an exampleof the:a.law of conservation of energyb.law of constant compositionc.law of conservation of matterd.law of multiple proportionse.law of gravity ____3.Which of the following represents matter that could be described asmacroscale?a.a bromine atomb.molecules of waterc.bacteria observed under a microscoped.a paperclipe.none of the above ____4.Dalton's Atomic Theory included all of the ideas listed belowexcept:a.Atoms cannot be created or destroyed.b.An element is composed of very small particlescalled protons, neutrons and electrons.c.All atoms of a given element have identicalproperties.d.All atoms of a given element have properties thatdiffer from those of other elements.e.Compounds are formed when atoms of differentelements combine with one another in small whole-number ratios. ____5.Atoms consist of three fundamental particles. What are these particles and their charges?a.proton (+1), neutron (neutral) and electron (-1)b.proton (-1), neutron (+1) and electron (neutral)c.proton (+1), neutron (-1) and electron (neutral)d.proton (neutral), neutron (+1) and electron (-1)e.proton (-1), neutron (neutral) and electron (+1) ____6.One of the following doesnot describe gases. Which one is it? a.Expands infinitely.b.Rigid shape.c.Easily compressed.d.Relatively low densities.e.Particles far apart. ____7.Which response lists characteristics of liquids?I.Volume does not vary much upon heating.II.Shape is constant.III.Easily compressed.IV.Fills the container completely.V.Flows.a.I, III, IV, and Vb.II, III, and Vc.Id.I, II, IV, and IVe.I and V ____8.All of the following are properties of antimony. Which one isnota physical property?a.It is a solid at room temperature.b.It has both yellow and gray forms (allotropes) in thesolid state.c.It burns in an atmosphere of chlorine.d.It is one of the few substances that expands uponfreezing.e.The gray form melts at 631°C. ____9.All of the following are properties of oxygen. Which one is aphysicalproperty?a.It supports combustion.b.It condenses to a liquid at−219°C and atmosphericpressure.c.It causes iron to rust.d.It reacts with calcium to produce calcium oxide,CaO.e.All of these are physical properties. ____10.Which of the following isnotan intensive property of matter?a.colorb.densityc.melting pointd.weighte.boiling point [Show More]

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