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

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

This preview shows pages 1–2. Sign up to view the full content.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

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...
View Full Document

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.

Page1 / 3

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

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online