CHM 1045 Fall 06 Test 1 Week 3 - version1 -Answers

CHM 1045 Fall 06 Test 1 Week 3 - version1 -Answers - Name...

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Unformatted text preview: Name Recitation #......... CHM 1045 Fall 06 Test 1 Week 3 45minutes 1 What are the SI units (name and abbreviation) for:- Name Abbreviation Mass kilogram kg Length meter m Amount of substance mole mol 6 2 Decide whether theses changes are physical or chemical:- a Spilt gasoline evaporates. physical b Gasoline being used in a mower chemical c Gasoline being used to clean greasy equipment physical 3 3 How many cm 3 are there in 0.7356dm 3 ? Give your answer in scientific notation to 3 significant figures. 1dm 3 = 1000cm 3 so 0.7356dm 3 = 0.7356 x 1000 cm 3 = 735.6cm 3 = 7.356 x 10 2 cm 2 = 7.36 x 10 2 cm 3 to 3sf. 3 4 The density of gold is 19.1g/cm 3 . What is this density when converted to kg/m 3 ? (You may like to first convert to g/m 3 and then to kg/m 3 .) 1m 3 = (100cm) 3 = 1 x 10 6 cm 3 and so 19.1g/cm 3 = 19.1 x 10 6 g/m 3 = (19.1 x 10 6 /1 x 10 3 )kg/m 3 = 19.1 x 10 3 kg/m...
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This test prep was uploaded on 04/20/2008 for the course CHM 1045 taught by Professor Bush during the Fall '08 term at FSU.

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CHM 1045 Fall 06 Test 1 Week 3 - version1 -Answers - Name...

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