Editing revision 10 of Answers To 2011-2012 Review HW For Mass, Sig Fig And Lab Safety Test

ChemistryWiki | RecentChanges | Preferences

Editing old revision 10. Saving this page will replace the latest revision with this text.

Part I 
 
1. density, speed, etc 
2. mass, volume, et 
3. rust, corrosive 
4. chemical is about grouping not how many groups 
5. 2 or more elements chemically combined in a fixed mass ratio 
6. separation technique, charateristics, composition 
7. homogeneous mixture only needs to be uniform through a single container not between container whereas cpds are constant in both. 
8. Applied 
9. Hypothesis 
10. Controlled 
11. Laws are theories that have been greatly testing including in all places. Law just states but theory states and tells why. 
12. permanent color change, temp change, precipitate formed, and gas formed (odor). 
13. precipitate 
14. Law of Conservation of Mass, Energy, Kinetic Molecular (KMT), and Coulombic force 
15. All substance are composed of particles that are in constant motion and sometimes interact. 
16. kg 
17. Discuss in class 
18. Kelvin 
19. mol 
20. Ion(s) 
21. Condense, Intermolecular Force (IMF) 
22. Particle have enough energy to overcome their IMF and can go anywhere 
 
Part II 
 
1. 5 
2. e.g. 4.05g 
3. 2 
4. Precision 
5. What math are you doing in final step? 
6. 17.18 s = 17.2 s 
7. 190L = 200L 
8. 202.6 cm2 = 203 cm2 
9. 307 m3 = 3.1E2 m3 or 310 m3 
10. 37.45cm/s = 37.5 cm/s 
11. 4.657 L/min = 4.66 L/min 
12. 2.722E8 cm3 = 2.72E8 cm3 
 
For 2019-2020 Answers 
13) 3.4050E-5cm (3.4050X10-5cm) 
14) 3.095E7 ft 
15) 3.0E2g 
16) 3E2 g and 3.00E2 g

View other revisions
ChemistryWiki | RecentChanges | Preferences