CONGRATULATIONS…You finished the Exam!! Before SUBMITTING your Exam, please make sure you:  Rip up your Periodic Table and scrap paper in front of the WebCam.  Then Submit your Exam.   GRADING: Your Raw Score is NOT your final grade. I will grade the Free Response and Extra Credit questions and add points to your Exam. In addition, I review each student’s exam and award partial credit for questions in which you may have inverted a conversion factor or determined the correct answer but did not select the answer with the correct number of significant figures.

Two samples of matter have been collected and observed. The following properties were collected. (2 points) Sample A: 10.0 g grey solid, malleable, reacts with nonmetals, Density=2.3 g/mLSample B: 25.0 g grey solid, malleable, reacts with nonmetals , Density= 2.3 g/mL (a)  Are the properties recorded, physical properties, chemical properties or both? _________________(b)  Are these two samples, the same type of matter or different?_______________________________

EXTRA CREDIT–From “Unusual States of Matter” Video: Name one of the unusual states of matter, describe what it is and give an example of this type of matter?  

Which of the following statements about condensing is TRUE?

(4)  FREE RESPONSE SECTION Chapter 1–Part 2:  Measurement:  (15 points) The following questions will require you to either:   Answer short answer questions.   Answer application questions, writing in the answer.   Solve math problems providing the answer with UNITS.  

What is the identity of a rectangular piece of metal with a mass of 5.80 g and the following dimensions: length of 2.00 cm, height of 0.50 cm and 0.30 cm width?  Show you calculation for the density of the solid to earn full credit (reporting to proper number of significant figures). Explain how you determined the identity.   Table of Densities of Various Metals Substance Density Aluminum 2.60 g/cm3 Gold 19.3 g/cm3 Mercury 13.5 g/cm3

The volume of a solid is determined to be 15.4 L. How many gallons (gal) would this be? Conversion Factors:    1 liter (L) = 1.057 quarts (qt) 1 gallon (gal) = 4 quarts (qt) To earn full credit, show your work using Dimensional Analysis and report answer to correct number of significant figures. It can be helpful to create a table to show your work like the one below.          

What is the SPECIFIC name of the process of a liquid changing to a gas below the boiling point of the liquid and occurs at the surface of the liquid.

(3)  MULTIPLE CHOICE:  Chapter 1–Part 2:  Measurement (56 points) 28 questions x 2 points each

For the graduated cylinders pictured below: (a) Record the measurement to the correct number of significant figures and units.(b) Determine & record the uncertainty of the measurement.(c) Determine and state which instrument would give the most REPRODUCIBLE result. Graduated Cylinder #1      Graduated Cylinder #2