Chem Notes.docx

# Chem Notes.docx - Chem Notes Chapter 2 key math skills...

• Notes
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Chem Notes Chapter 2: key math skills – place values, +/- numbers, %s, & numbers in scientific notation Bring calculator (graphing) Metric system: standard system of measurement used for chem. Names and abbreviations for metric system or SI units SI (French name)- International System of Units GOTTA KNOW THE METRIC SYSTEM!!!!!!!! Measurement Metric SI Length meter(m) meter(m) Volume liter(L) cubic meter(m^3) also cc Mass gram(g) kilogram (k) Temperature degree Celsius(*C) kelvin(k) Time second(s) second(s) 1 m=100 cm 1 m=39.4 in. 1m=1.09 yd 2.54 cm= 1 in. Length in the metric system and SI is based on the meter, which is slightly longer than a yard. Volume is the space occupied by a substance. SI unit of volume is m^3 Volume is based on the liter which is slightly larger than a quart 1 L=1000 mL 1 L = 1.06 qt 946 mL = 1 qt. Graduated cylinders are used to measure small vol.

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• Spring '08
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