1. There’s a quiz and a test this week!!!

3. Wait –
There’s a study guide

4. What’s on the test? Chapters 1&2, Chapter 3 through page 85
There will be some calculations, so bring a calculator
A periodic table and English to metric conversions will be given to you.

5. Know about physical changes versus chemical changes
Know the different experiments: Cathode ray tube / oil drop / gold foil / study of  and  particles:
Who did them
What they showed
Know about physical changes versus chemical changes

6. Know the prefixes in table 1.5 and how to convert
Know how to convert length, volume and mass from english to SI and SI to english
Understand temperature conversions
Understand significant figures and how to use them in your answer.

7. Understand density
In your calculations, keep track of your units!

8. Name Game
Know the names and formula of common compounds. Especially study pages 56 and 57
Given the symbol, know the name of the common elements ( first 36, alkali metals, alkaline earth metals, halogens, noble gases)
Given the name, know the symbol

9. Atom
Atomic number = number of protons = number of electrons ( for element)
Atomic mass + sum of number of protons + number of neutrons
Isotopes vary in number of neutrons
81Br has a mass of 81; atomic number = 35; therefore 35 protons, 35 electrons; 46 neutrons

10. Know how to balance equations
Understand the difference between molecules and moles; gram and amu.
Given a mass, be able to tell how many molecules, atoms, moles of atoms, moles of molecules.

11. Do the practice quizzes and Exam 1 on the web!