chem 1 cheat sheet

chem 1 cheat sheet - -mixture- a physical combination of...

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-mixture- a physical combination of two or more substances that may be present in variable amounts-atmosphere -matter= pure substances/mixtures- pure substances=elements/compounds -rows=periods, each row spans a full range of properties columns=group/families have similar chem. Behaviors - compound- a pure substance made up of two or more elements in a fixed composition-ex. Carbon dioxide and water -mass of component/total mass of mixture multiplied by (100=%, 1 mill=ppm, 1 bill=ppb) -atmosphere-nitrogen (78%) oxygen (21%) other (<1%)-argon, carbon dioxide -meter-slightly longer then a yard- liter- volume of cube .1m on side- gram-1/1000 of mass of 1L of water -micrograms/cubic meter(µg/m - 3 )-µg=1/1 milliong -macroscopic-classifications of matter, concentrations in mixtures-properties can be measured directly -relative atomic mass= mass/mass=x amu of 1 __ atom/1 amu of 1 ___ atom (88.9% O=.89g) -CH 4 =ratio 4H per 1C- binary compound -one that contains only two elements -hydrocarbon-contain only carbon and hydrogen-gasoline, natural gas, LP gas, coal
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chem 1 cheat sheet - -mixture- a physical combination of...

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