Chem 1210 Syllabus

Assessment Outcomes Data Report

CHEM 1210 SPRING 20067

Instructor: David Farrelly

Course Description: Principles of Chemistry I, First of a two-semester sequence covering fundamentals of chemistry. Designed for science and engineering students.

Enrollment: 232

Assessment method: Gain score test – see end of document. Credit was assigned if students took both the initial and final Gain score tests irrespective of their performance.

The GainScore test showed clear improvement. However, it seemed, based on how quickly students spent taking the test that they really didn't take it all that seriously.

Web CT was used extensively in this class. Students consistently said that the online quizzes supplied by the publisher did not really always coincide with the material covered in class. It might be useful to design quizzes which coincide more directly with the 1210 syllabus as taught at USU.

CHEMISTRY 1210 - Spring 2007

Gain Score Test

15 questions in 20 minutes

Instructions

1. Do NOT put any identifying information on the Scantron sheet. The test will be graded anonymously.

The purpose of this test is to monitor how the class as a whole has mastered certain concepts rather

than you individually.

2. Enter your answers on the Scantron sheet provided

3. Answer ALL questions even if you have to guess

4. To receive 10 points as described in the syllabus you must print your name and Banner ID below and

return this ENTIRE EXAM INTACT in class together with your completed Scantron.

NAME:

(PRINT IN BLOCK CAPITALS)

Banner ID:

1. The smallest piece of an element that can exist as that element is called

(a) an atom

(b) a molecule

(c) an electron

(d) a compound

2. Mixtures differ from compounds in that

(a) they can have variable composition

(b) they contain only atoms

(c) they do not differ - compounds are mixtures of atoms

(d) (a) and (c) are both correct

3. Isotopes are

(a) atoms with different numbers of protons but the same number of neutrons

(b) atoms with different numbers of neutrons but the same number of protons

(c) always radioactive versions of certain elements

(d) (a) and (c) are both correct

4. Sodium chloride is made up of

(a) molecules

(b) lattices of electrically neutral atoms

(c) lattices of ions

(d) a mixture of atoms and ions

5. A weak electrolyte is something that

(a) hardly dissolves in water at all

(b) breaks up entirely into positive and negative ions in aqueous solution

(c) does not break up at all in aqueous solution

(d) breaks up somewhat into positive and negative ions in aqueous solution

6. Which is an example of a weak acid?

(a) A concentrated sulfuric acid solution

(b) A very dilute sulfuric acid solution

(c) A concentrated sodium hydroxide solution

(d) A concentrated acetic acid solution

7. Which is the most accurate statement?

(a) The universe is running out of energy

(b) We are facing a possible future shortage of usable energy sources

(c) Science will find a way to create energy

(d) All are correct

8. Which is the most accurate statement?

(a) Chemical reactions always produce some heat

(b) When water freezes it is because it has given off some heat to the surroundings

(c) The faster a chemical reaction goes the more heat that is produced

(d) The energy produced in a chemical reaction is called enthalpy

9. Which is the most accurate statement?

(a) Electrons in an atom occupy little boxes called orbitals

(b) Orbitals are the only places in an atom where you can find an electron

(c) An orbital is a region of space in which you most likely will find an electron

(d) Electrons avoid orbitals if at all possible

10. Which is the most accurate statement?

(a) Light is a wave

(b) Electrons are particles

(c) Electrons and light can each display both wavelike and particle-like properties

(d) Light can behave like a particle but an electron cannot behave as a wave

11. A water molecule is shaped a bit like a boomerang (i.e., it is bent). Which is true?

(a) If the water molecule were linear then life as we know it could not exist

(b) Lakes would freeze from the bottom up if the molecule were linear rather than bent (i.e., ice would

sink)

(c) Water would be a gas if the molecule were linear rather than bent

(d) All are true

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12. The atoms in the second period of the periodic table are arranged in order as follows;

Li Be B C N O F Ne

Which is/are the largest atoms in terms of mass (heaviest) and radius (biggest)?

(a) Li is the heaviest and is also the biggest

(b) Ne is the heaviest and is also the biggest

(c) Ne is the heaviest and Li is the biggest

(d) Li is the heaviest and Ne is the biggest

13. The atoms in the second period of the periodic table are arranged in order as follows;

Li Be B C N O F Ne

Which of the following has the largest radius?

(a) Be2+

(b) O

2?

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(c) An O atom

(d) A Be atom

14. Which is true?

(a) Snow can only disappear by first melting

(b) Snow can only disappear when the temperature goes above freezing

(c) Snow can disappear at any temperature because ice can go straight from the solid to the gas

phase without ever being a liquid

(d) (a) and (b) are both true

15. Which is true of IV solutions used in hospitals?

(a) If they are too dilute then blood cells will expand and burst. If they are too concentrated then

blood cells will shrivel up

(b) If they are too concentrated then blood cells will expand and burst. If they are too dilute then

blood cells will shrivel up

(c) The concentration doesnÕt matter

(d) The pH must be set exactly at 7

The End

To collect your 10 points PRINT your name and ID on the front and return this entire exam along with

the Scantron

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