Terms from chemistry chap 1
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| Accuracy | how close a measurement is to the true value of the quantity
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| Chemical Property | to observe this prop. chemical change(ex. burning)must occur
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| Chemistry | the study of matter and the changes it undegoes.
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| Compound | substance made of atoms of 2/more elements united in fixed proportions.
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| Density | mass of an object divided by it's volume (d=m/v)
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| Element | substance that can't be separated into simpler substs by chemical means.
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| Extensive Property | depends on how much matter you considered (mass/volume).
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| Heterogeneous mixture | comp of the mixture is not uniform(sand and iron fillings)
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| Homogeneous mixture | composition of the mixture is uniform thruout(h2o and sugar)
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| Hypothesis | a tentative explanation for a set of observations
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| Intensive property | does not depend on how much matter you have (temp/density)
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| International System of Units | revised metric system
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| SI | International System of Units
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| Kelvin | SI base unit for temperature(0K lowest temp theoretically possible)
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| Law | concise verbal/math stmt of relatshp btwn phenom thats always the same under the same conditions.
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| Liter | the volume occupied by one cubic decimeter (1dm^3) SI unit for volume
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| Macroscopic Property | Props that can be determined directly(length,volume,mass)
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| Mass | the measure of the amount of matter in an object (kg is SI unit for mass)
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| Matter | anything that occupies space and has mass
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| Microscopic Property | on the atomic or molecular side - must be determined by an indirect method.
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| Mixture | combination of 2/more subs in which the subs retain their identities
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| Physical Property | can be measured/observed w/o changing the comp/id of subs.
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| Precision | how closely 2/more measurmnts of the same quant agree with one another
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| Qualitative | general observs about the sys(can't be said as
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| Quantitative | numbers obtained by various measurmnts of system (temp,time)
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| Scientific Method | systemic approach to research
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| Scientific Method steps | define problem,collect data, interpret data, repeat
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| Significant Figures | the meaningful digits in a measured or calculated quantity
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| Substance | form of matter that has definite/constant comp and distinct properties
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| Theory | unifying princp that explains body of facts and/or those laws based on it
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| Volume | measure of how much space an object occupies (SI unit is m^3-cubic meter)
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| Weight | force that gravity exerts on object-changes with changes in gravity
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
melwandelt
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