Quiz 1.2 Review – Ch 2 & 3       (10 points)

            (file in MISC)

 

Section A –

Information and terms that will be covered in this quiz

 

Information Covered in Ch 2 & 3

Ch 2 – Data Analysis

         2.1 Units of Measure

SI Units, base units, time ( second  s ), length (meter  m ), mass (kilogram  kg )

Derived Units, volume (cubic  meter  m3 ), density

Temperature, kelvin (K), Celsius (C)   °C + 273 = K

2.2 Scientific Notation and Dimensional Analysis

Add & subtract similar, multiply & divide similar

DimensionalAbnalysis, conversion factor

2.3 How reliable are measurements?

Accuracy and precision, percent error

 

 

 

Significant figures, rounding off numbers – addition & subtraction similar, multiplication and division similar

2.4 Representing Data

Circle graph, bar graph, line graph, interpreting graphs

                    

Ch 3 – Matter – Properties and Changes

3.1 Properties of Matter

substances, physical properties, chemical properties,

states of matter, solid, liquid, gas ( vapor )

3.2 Changes in Matter

physical change, chemical change, chemical reaction

conservation of mass,  Massreactants  =  Massproducts

3.3 Mixtures of Matter

homogeneous (solution – usually in water), heterogeneous

separating mixtures – filtration, distillation, crystallization, chromatography

3.4 Elements and Compounds

Periodic table, Law of Multiple Proportions

 

Section B – Practice (not required)

Here are 3 links to help you with Chapter 2 material.

Converting units of measure - prefixes  or  PDF

 

This is the best link I know of  to check (and/or practice) your knowledge of significant figures:

Significant Figures Problems – interactively check your answers (CSUDH)

 

This is the best link I know of to check your knowledge (and/or practice) density problems:

Density Problems – interactively check your answers (CSIDH)

 

 

Section C – (REQIRED PROBLEMS)

Problems are to be COPIED and answered.  Problems that require calculations – must show work to get credit.

 

DO NOT PRINT THE FOLLOWING PAGES!  All answers are to be in your own handwriting and on your own paper!

 

Go to the four links.  If you give your answers in complete sentences and you won’t have to copy the questions.  If you would rather, you may copy the problems and answer them.  There are a total of 64 problems. 

 

Ch 2 Questions

 

1-14    Using Significant Figures (Blacksburg High)  (14 probs)

15-28  Using significant Figures in operation (Blacksburg High)  (14 probs)

 

29) Wood has a density of 5.53g/cm3. What must the volume of 33.3 g of wood?

30) Copper has a density of 4.44 g/cm3. What is the volume of 2.78g of copper?

31) Sodium has a density of 1.95 g/cm3. What is the volume of 56.2g of sodium?

32)What is the density of a piece of iron that has a mass of 59.8g and a volume of 2.08 cm3?

33) What is the density of mercury that has a mass of 39.6 g and a volume of 9.00 cm3?

34) Granite has a density of 4.67 g/cm3. What is the mass of 46.8 cm3 of granite?

35) Corn oil has density of 6.89 g/cm3. What is the mass of 34.0 cm3 of corn oil?

 

Check your answers here:

29) 6.02 cm3      30) 0.626 cm3      31) 28.8 cm3      32) 28.8 g/cm3      33) 4.40 g/cm3      34) 219 g           35) 234 g

 

Ch 3 Questions

 

To work theses problems, read the summaries at the top of each page, and/or use my lectures notes that you have already printed Lecture Notes – Physical vs Chemical Change

 

36-49   Classifying Matter with prctice quiz and answers (Blacksburg High) 

(14 probs)

50-64   Chemical vs Physical Properties quiz and answers (Blacksburg High)

(15 probs)