chapter 1 & 2
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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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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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Or sort by any of the columns using the down arrow next to any column heading.
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Created by:
lhen
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