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chapter 1 & 2

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Question
Answer
the study of the composition, structure, and properties of matter and the changes it undergoes.   show
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matter   show
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A characteristic of matter that can be observed or measured.   show
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What are some of the features of the procedure known as the scientific method?   show
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Observation is something that is _________ and can be _________.   show
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show explanation  
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show Test  
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A set of hypothesis are organized into a _____, often called a _______.   show
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show explain  
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A theory is used to make _______, which are compared with further observations. If they do not agree, then the theory must be ________ or _______.   show
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show scientific law  
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show measurement  
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four important parts of any measurement.   show
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show number  
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the _____ that tells scales the measurement.   show
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show Mass  
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show weight  
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show Scientific notation  
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show digit term  
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show exponential term.  
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The digits that are certain, plus 1 that is uncertain is called ___________.   show
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show non-zero digits  
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show leading zeros; not  
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show Trailing zeros; written decimal point  
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When adding or subtracting, the sum or difference should have as many _____ _______ as the term that has the _____ decimal places.   show
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show significant figures; fewest  
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What are the basic units of length, mass, volume, time, and temperature?   show
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show gram  
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show liter  
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show 10 dm  
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1 m = ___ cm   show
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show 1000 m  
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show 1000 mm  
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show 1000 g  
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show 1000 mg  
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1 L = ____ mL   show
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show 1,000,000 cm³  
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show 1 cm³; 1 cc  
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What is the formula of density?   show
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show matter  
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show the ability to do work.  
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What are the two classification of energy?   show
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the energy possesed by matter due to its motion.   show
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show energy that is stored in matter.  
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show Heat; motion  
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show calories (cal)  
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show calories  
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show kilocalories (kcal)  
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show 1000 cal  
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The SI unit for both energy and work is the _____.   show
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1 cal = _____ J   show
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show 1000 J  
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What are the temperature scales?   show
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show K = °C + 273.15  
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show °C = K - 273.15  
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show specific heat (SH)  
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heat = (mass)(specific heat)(change in temp.)   show
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show ΔT = T2 - T1  
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Uniform composition, appearace, and properties throughout is called ______.   show
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Not uniform in composition throughout is called ______.   show
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show mixture  
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show solution  
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show (pure) substance  
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a pure substance that is composed of 2 or more elements chemically combined in definite proportions is called _______.   show
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show element  
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has both a definite shape and a definite volume is called ______.   show
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has definite volume, but not a definite shape; it take shape of its container is called _____.   show
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show gas  
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show fluids  
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A change that does not alter the identity of the substance is called ______.   show
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a process that involves a change in the composition or structure of the substance is called ______.   show
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conversion of matter from one state to another is called ____.   show
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change from a solid to a liguid is called _____, and occurs at the ______ (mp).   show
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show melting point (mp)  
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show freezing; freezing point  
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the temperature at which the particles in the liquid slow down enough that the attractve forces pull the particles close together is called _____.   show
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show heat of fusion; released  
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heat = (mass)(heat of fusion)   show
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liquid molecules with sufficient energy escape from the liquid surface and enter the gas phase is called ______.   show
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Gas bubbles form throughout the liquid, rise to the surface, and escape is called ______, which occurs at the _____.   show
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show condensation  
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show boiling point.  
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energy needed to vaporize exactly 1 g of liquid to gas at its boiling point; also, energy released when the gas condensed is called _____.   show
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heat = (mass)(heat of vaporization)   show
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show sublimation  
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a graph that illustrate, visually, changes of state as heat is added called ______.   show
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show cooling curve  
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