Chemistry Oct. 23 & 24, 2017

•OBJECTIVE: Students will

 describe in writing, how the

 elements are arranged on

 the periodic table.

•WARM-UP

•1. On the periodic table

 there are vertical columns

 and horizontal rows. (a)

 What name is given to the

 columns and and rows? (b)

 How many (a) columns (b)

 rows are on the P.T.?

HW

•Page 91 # 52 & 53

•CW

•1. Complete lost page from

 the test on chapter 2

•2. Complete conversion of

 units work sheet

•3. Notes on the periodic

 table.

Conversion problems

DO NOT WRITE ON THIS PAPER. GIVE ALL ANSWERS ON LOOSE-LEAF PAPER

1.     One step problems

Convert each of the following and show your working:

a. 2,4 cm to m

b. 34.6 m to mm

c. 5 km to m

d. 20 dg to g

e. 5.3 x 10⁹ ng to g

f. 4.3 x 10² kg to g

g. 2,000 μs (μ = micro) to s

h. 75 L to ml

i. 500 ml to L

j.  345°C to Kelvin

k. 1234 K to °C

2.     2-step-problems

Convert each of the following by converting to the base unit first then to the unit in the question.

aa.  7.5 km to dm

bb.   56 cg to kg

cc.   6.4 x 10⁴ μm to mm