Tuesday, February 9, 2010

CHEM: Day 100 - Homework

Homework due on Wednesday, Period 3; due Thursday, everyone else:

?s - pp 232-233: 52, 62, 63, 81, 82
       p 274: 93
       M p 222: 3-6

Lab on Wednesday and Thursday: Experiment 21. Read over this (pp 109-110) before you come to lab.

DONE.

CHEM: Day 99 - Homework

More catchup!

HW due for Tuesday, Periods 3/4/8; due Wednesday, Period 1:

1) Read pp 240-244
2) Atom-Pushing worksheet

Done again!

CHEM: Day 98 - Homework

Catchup post!

Homework given out on Friday, due Monday:

Radioactivity Worksheet II - with the isotope tables attached. Find the average atomic mass of selenium and lead, decay predictions/equations, and problems from the Merrill book.

Plus - read text pp 218-227

Done.

Thursday, February 4, 2010

CHEM: Day 97 - Homework

For tomorrow, all periods:

Questions due - p 894-895: 55-58, 69-71, 80

Nice and short. More work over the weekend, though.

Tuesday, February 2, 2010

CHEM: Day 95 - Homework

For tomorrow, Periods 4 and 8 have no homework due. (Except for you careless readers in 8 - *sigh*)

Period 1: See yesterday's post for your homework.

Period 3: 1) Read pp 870-874
               2) ?s - Radioactivity Worksheet I + p 894: 40, 41, 46, 48, 51

That should do it.

Monday, February 1, 2010

CHEM: Day 94 - Homework

Well, this pretty much fell off the radar for the month of January. I failed.

Time to make this useful again.

Homework due for Tuesday, Periods 3, 4, and 8/Wednesday, Period 1:

1) Read pp 860 - 869
2) ?s - p 894: 35 - 37, 42, 45

For lab: Period 1 - Read the following links, in order:

Nuclear fission - Read the Introduction, Section 1.5 (chain reaction), and History sections
Nuclear fusion - Read the Introduction and the Overview
Nuclear weapons - Read the whole page. If you like, you can click through the links on the right of the page.

NB: You will not understand everything on these pages, especially if you read outside the indicated sections. You won't understand every term in the sections either, but you will be able to understand most of them. You will gain sufficient background from the reading for tomorrow's exercise.

(Example: Most energies on these pages are given in a unit we don't use in first-year chemistry, the electron-Volt or eV, because this is the standard unit for talking about the energies involved in the nucleus and the motion of subatomic particles. 1 eV = 1.60 x 10^(-19) J. You don't need to know the value of an eV in order to understand the article, but it will probably bother you a little. Just read over it.)

That should do it.