UCLA Chemistry Review Questions

Final ExamYour grade is determined by your only attempt.
1. Which state of matter has a definite volume and shape?
A. Solid
B. Plasma
C. Liquid
D. Gas
2. Which term refers to a solid turning into a liquid?
A. Vaporization
B. Freezing
C. Melting
D. Condensation
3. What is a good example of a physical change?
A. The assembly of thousands of smaller amino acid molecules into one very large protein molecule
B. The melting of iron at extremely high temperatures
C. The breaking apart of a large complex carbohydrate molecule into smaller molecules called simple sugars
D. The formation of bubbles when vinegar and baking soda are placed in the same bowl
4. The particles in which substance will have the greatest amount of translational energy?
A. Hydrogen gas
B. Liquid water
C. Ice
D. Solid gold
5. Which temperature scale is used by most people in the world?
A. The Calorie scale
B. The Fahrenheit scale
C. The Kelvin scale
D. The Celsius scale
6. Which represents the largest unit of energy?
A. The joule
B. The kilojoule
C. The Calorie
D. The calorie
7. Which unit is used to measure length in the metric system of measurement?
A. Meter
B. Inch
C. Liter
D. Gram
8. What would be the approximate mass in grams of a 7.0 pound baby?
A. About 3,200 grams
B. About 3.2 grams
C. About 32,000 grams
D. About 65 grams
9. The specific gravity of bone is about 1.85, of blood is about 1.06, of water is 1.00, and of urine is 1.03 to 1.035. Which substance
contains the fewest particles?
A. Bone
B. Urine
C. Water
D. Blood
10. Which particle is an example of a nucleon?
A. Cation
B. Neutron
C. Electron
D. Anion
11. What is the atomic mass of an atom of carbon with seven neutrons? (Use the Periodic Table to help you with this answer.)
A. 13
B. 6
C. 14
D. 7
12. Which atom has five valence electrons?
A. A helium atom
B. A sodium atom
C. A carbon atom
D. A nitrogen atom
13. Which element is the best conductor of electricity?
A. Sulfur
B. Boron
C. Calcium
D. Silver
14. Which nonmetal is extremely nonreactive, refusing to bond with other elements except under very unusual conditions created in
the laboratory?
A. Xenon
B. Sulfur
C. Oxygen
D. Chlorine
15. Which element has two valence electrons?
A. Calcium
B. Sodium
C. Carbon
D. Iodine
16. How do two atoms of oxygen bind together?
A. They share two pairs of electrons.
B. They form a bond between the negative side of one atom of oxygen and the positive side of another atom of oxygen.
C. One atom of oxygen donates an electron to another atom of oxygen.
D. They share one pair of electrons.
17. What is unique about polar covalent bonds?
A. Electrons are shared unequally between the atoms.
B. Hydrogen bonds
C. The bond is due to an electrical attraction between atoms rather than a sharing of electrons.
D. Electrons are shared equally between the atoms.
18. Which makes a good example of a compound that uses ionic bonds?
A. Ammonia (NH3)
B. Sodium chloride (NaCl)
C. Methane (CH4)
D. Water (H2O)
19. Which substance is a product in the following equation: SO3 + H2O → H2(SO4)?
A. SO4
B. H2(SO4)
C. H2O
D. SO3
20. What type of equation is the following equation: 2KI + Pb(NO3)2 → 2KNO3 + PbI2?
A. A single-replacement reaction
B. Synthesis reaction
C. A double-replacement reaction
D. A decomposition reaction
21. Which equation is written correctly?
A. Na + Zn(SO4) → Na2(SO4) + Zn
B. 4Fe + 3O2 → 2Fe2O3
C. 2Fe + 3CO2 → 3Fe2O3 + 3C
D. 2NH3 + 3O2 → 2N2 + 6H2O
22. What is an example of an endothermic reaction?
A. Any reaction where the chemical bonds in the reactants contain more energy than the chemical bonds in the products
B. The combustion of coal dust when exposed to a spark
C. The reaction between glucose and oxygen molecules
D. Photosynthesis
23. How does the concentration of the reactants affect the speed of a chemical reaction?
A. Increasing the concentration of the reactants will slow down the speed of a chemical reaction.
B. Changing the concentration of the reactants won’t have any effect on the speed of a chemical reaction.
C. Increasing the concentration of the reactants will increase the speed of a chemical reaction.
D. Lowering the concentration of the reactants will increase the speed of a chemical reaction.
24. What is one way that catalysts work to increase the speed of a chemical reaction?
A. They lower the pressure of any gaseous reactants.
B. They hold the reactants in the proper orientation.
C. The catalyst reacts with a reactant and becomes an entirely new chemical when the reaction is over.
D. They lower the temperature of the reactants.
25. How can you know the amount of grams in a mole of an element?
A. Look at the periodic table for that element’s atomic number and change the units to grams.
B. Multiply the atomic mass of an element by Avogadro’s number.
C. Look at the periodic table for that element’s atomic mass and divide by Avogadro’s number.
D. Look at the Periodic Table for that element’s atomic mass and change the units to grams.
26. How many moles of aluminum oxide (Al2O3) are formed in the reaction Fe2O3 + 2Al → Al2O3 + 2Fe?
A. Five
B. One
C. Three
D. Two
27. Which balanced chemical equation represents cellular respiration of a molecule of glucose?
A. C6H12O6 + 6O2 → 6CO2 + 6H2O + energy
B. C6H12O6 + O2 → CO2 + H2O + energy
C. 6CO2 + 6H2O + energy → C6H12O6 + 6O2
D. C3H8 + 5O2 → 3CO2 + 4H2O
28. What type of mixture contains the smallest particles?
A. A heterogeneous mixture
B. A colloid
C. A suspension
D. A solution.
29. Why is it hard to dissolve silver chloride (AgCl) in water?
A. The attraction between hydrogen bonds is too strong for the water molecules to break apart.
B. The solute-solute attraction between the silver ions and chloride ions is very strong and hard to break.
C. Silver chloride is nonpolar.
D. The solute-solute attraction between the silver ions and chloride ions is very weak.
30. Which solution of gas dissolved in water can contain the most gas molecules?
A. A can of warm soda under low pressure
B. A can of cold soda under low pressure
C. A can of cold soda under high pressure
D. A can of warm soda under high pressure
31. What type of substance releases positively charged hydrogen ions when placed in water?
A. Buffer
B. Acid
C. Base
D. Salt
32. What will your body do if you get too alkaline?
A. Excrete fewer hydrogen ions in your urine
B. Bind hydrogen ions with carbonate ions to form carbonic acid
C. Excrete more hydrogen ions in your urine
D. Increase the depth and rate of your breathing
33. Which chemical is deficient in the condition called hypokalemia?
A. Sodium
B. Calcium
C. Potassium
D. Iron
34. What is an example of a monosaccharide?
A. Cellulose
B. Glycogen
C. Fructose
D. Sucrose
35. Which lipid molecules are formed from a glycerol molecule and three fatty acid chains?
A. Testosterone molecules
B. Phospholipids
C. Cholesterol molecules
D. Triglycerides
36. What is an important function of proteins in the body?
A. Speed up chemical reactions
B. Serve as your body’s primary source of energy
C. Provide insulation under the skin
D. Contain the genetic code that tells your body how to build structures and chemicals
© 2022 Cengage Learning, Inc. All Rights Reserved

Don't use plagiarized sources. Get Your Custom Essay on
UCLA Chemistry Review Questions
Just from $13/Page
Order Essay
Calculate the price
Make an order in advance and get the best price
Pages (550 words)
*Price with a welcome 15% discount applied.
Pro tip: If you want to save more money and pay the lowest price, you need to set a more extended deadline.
We know how difficult it is to be a student these days. That's why our prices are one of the most affordable on the market, and there are no hidden fees.

Instead, we offer bonuses, discounts, and free services to make your experience outstanding.
How it works
Receive a 100% original paper that will pass Turnitin from a top essay writing service
step 1
Upload your instructions
Fill out the order form and provide paper details. You can even attach screenshots or add additional instructions later. If something is not clear or missing, the writer will contact you for clarification.
Pro service tips
How to get the most out of your experience with Writall
One writer throughout the entire course
If you like the writer, you can hire them again. Just copy & paste their ID on the order form ("Preferred Writer's ID" field). This way, your vocabulary will be uniform, and the writer will be aware of your needs.
The same paper from different writers
You can order essay or any other work from two different writers to choose the best one or give another version to a friend. This can be done through the add-on "Same paper from another writer."
Copy of sources used by the writer
Our college essay writers work with ScienceDirect and other databases. They can send you articles or materials used in PDF or through screenshots. Just tick the "Copy of sources" field on the order form.
See why 20k+ students have chosen us as their sole writing assistance provider
Check out the latest reviews and opinions submitted by real customers worldwide and make an informed decision.
Huge help! Fantastic work!
Customer 454991, October 19th, 2021
Health Care
I got an A. on this project thanks
Customer 453877, June 6th, 2020
I got my essay 3 hours earlier, use this site instead of papersowl or edubirdie trust me I got scammed. This website is actually legit :) - Happy
Customer 455051, November 1st, 2021
Greater than anticipated. Thanks for the start.
Customer 454569, November 8th, 2020
I got a B thanks
Customer 453877, February 1st, 2021
Excellent!! Great Work Exactly what I needed!!!!
Customer 455199, December 15th, 2021
Social Work and Human Services
Customer 455123, January 29th, 2023
Customer 454991, November 30th, 2021
Thank you!
Customer 454959, February 6th, 2022
I received a 100 on this work.. I am very pleased and know that I have someone that knows what they are doing and follows instructions!!!! Great work !!! Thank you, Thank you !!
Customer 454497, September 3rd, 2020
Great writer
Customer 454983, February 11th, 2022
Customer 454959, November 2nd, 2021
Customer reviews in total
Current satisfaction rate
3 pages
Average paper length
Customers referred by a friend
15% OFF your first order
Use a coupon FIRST15 and enjoy expert help with any task at the most affordable price.
Claim my 15% OFF Order in Chat
Live Chat+1(978) 822-0999EmailWhatsApp

Order your essay today and save 20% with the discount code GOLDEN