DIRECTIONS:

1. Select a new page in your Spiral lab notebook,

2. Fill in the top portion of the first page only. Take the following steps: step 1 – print your last name followed by printing your first name in the box entitled NAME; step 2- Place the name Chapter 5 Overview in the box entitled EXPERIMENT/SUBJECT; step 3 – leave EXP NUMBER blank; step 4 – Place the due date 12 OCTOBER 2007 in the box entitled DATE; step 5 – leave LAB PARTNER and LOCKER/DESK NO. blank; step 6 – place C.P. Chemistry period ___ in the box labeled COURSE AND SECTION NO.

3. Read Chapter 4 and summarize what you reads using the outline presented after reminder.

· REMINDER – GRADING SYLLABUS: BASED UPON CLARITY AND NEATNESS

1. A = THREE PAGES

2. B = TWO PAGES

3. C = ONE PAGE

· SCIENTIFIC NOTATION AND UNITS

- QUANTITATIVE ANSWERS TO A MATH PROBLEM MUST INCLUDE A NUMBER AND A UNIT IN ORDER TO BE CALLED A MEASUREMENT.

- SCIENTIFIC NOTATION IS USED TO EXPRESS A VERY LARGE OR A VERY SMALL NUMBER.

- THERE ARE THREE UNIT SYSTEMS USED TO REPRESENT MEASUREMENT AND THEY ARE CALLED English, Metric and SI.

- METRIC AND SI UNITS ARE USED IN THIS CLASS FOR ALL MATH TYPE PROBLEMS.

- BINARY COMPOUNDS CONTAINING ONLY NONMETALS USES PREFIXES TO SPECIFY THE NUMBER OF ATOMS PRESENT.

· UNCERTAINTY IN MEASUREMENT AND SIGNIFICANT FIGURES

- ALL MEASUREMENTS WILL CONTAIN A SPECIFIC UNCERTAINTY THAT IS DEPENDENT UPON THE TYPE OF DEVISE USED TO COLLECT DATA.

- DEGREES OF UNCERTAINTY ARE PLACED AFTER THE MATH NUMBER I.E. +0.01 FOLLOWED BY THE UNIT.

- SPECIFIC RULES EXIST TO ROUND OFF THE CORRECT NUMBER OF SIGNIFICANT FIGURES IN A CALCULATED RESULT.

· PROBLEM SOLVING AND UNIT CONVERSIONS

- THE NAME DIMENSIONAL ANALYSIS ALLOWS STUDENTS TO CONVERT FROM ONE UNIT TO ANOTHER UNIT.

- CONVERSION UNITS ALLOOW FOR BRIDING BETWEEN UNITS.

- THERE ARE THREE TEMPERATURE SCALES UTILIZED IN CHEMISTRY; FAHRENHEIT, CELSIUS AND KELVIN.

- DENSITY REPRESENTS THE AMOUNT OF MATTER PRESENT IN A GIVEN VOLUME.