Chem 120 exam 4 - Study guides, Class notes & Summaries

Chem 120 Final Exam 3 GRADED A+ (ACTUAL EXAM ) Questions and Answers (Solved) 1. The most common base in the world is also known as lye, its chemicalformula is: Answer: NaOH 2. A Bronsted-Lowery acid: accepts or donates a proton? Answer: Donates 3. In the following reaction the conjugate acid is Answer:H3PO4+H2O = H2PO4+H3O: H3O 4. Determine the physical state of the following at room temperature: CH3CH2CH2CH2CHCH2CH2CHCH3 | | CH2 CH3 | CH3 Answer: Liquid 5. The following hydrocarb...

CHEM 120 Exam 1 (Latest 2023 - 2024) Actual Questions and Answers 100% Correct 1. What is an alkene? Answer: a hydrocarbon with a carbon-carbon double bond 2. True or False:Water can hydrogen bond. Answer: True 3. True or False: Sodium chloride can hydrogen bond. Answer: False 4. True or False: 1,3-cyclopentadiene can hydrogen bond. Answer: False 5. True or False: 3-ethylhexane can hydrogen bond. Answer: False 6. What is a four-carbon alkane called? Answer: butane 7. What is a c...

CHEM 120 Week 8 Final Exam LATEST 2023/2024 UPDATE. SEMESTERS PRIME EXAM (AUGUST 2023) NEWEST EXAM (100% VERIFIED) 1. The name of the compound FES04 is iron sulfate 2. Peptide bonds link the amino acids together to make a primary polypeptide sequence. The bonds are AMIDE 3. If a balloon is filled with helium were heated with a blow dryer , the balloon would increase in volume 4. You are setting up an experiment

CHEM 219 EXAM 1 QUESTIONS WITH ALL CORRECT ANSWERS Describe how individual resonance structures impact the true structure of a molecule or polyatomic ion. - Answer Each contributing individual resonance structure contributes characteristics to the overall hybrid structure of the compound. The hybrid "averages" bond lengths and formal charges by delocalizing them among atoms that share them in each contributing individual resonance structure. On a piece of scrap paper, draw the resonance s...

Chem 420 Exam Questions With Verified Solutions Contain a carbonyl group that consist of carbon-oxygen double bond with two groups of atoms attached to the carbon at angles 120. - answerAldehydes and ketones Aldehyde - answerthe carbonyl group is bonded to at least one hydrogen atom Ketones - answerThe carbonyl group is bonded to two alkyl group or aromatic rings. Naming aldehydes - answerreplace -e with -al Naming ketones - answerreplace -e with -one Common names for aldehydes - answerm...

Chem 420 Exam Questions With Verified Solutions Contain a carbonyl group that consist of carbon-oxygen double bond with two groups of atoms attached to the carbon at angles 120. - answerAldehydes and ketones Aldehyde - answerthe carbonyl group is bonded to at least one hydrogen atom Ketones - answerThe carbonyl group is bonded to two alkyl group or aromatic rings. Naming aldehydes - answerreplace -e with -al Naming ketones - answerreplace -e with -one Common names for aldehydes - answerm...

CHEM 120 – Combined Learning Questions and Exam with Q&A 2024 Express 0.000042 cm in scientific Notation 4.2x10^-5 cm Express 45000 mm cm in scientific Notation 4.5x10^4 mm Measured vs Exact numbers M- obtained using a tool E- obtained by counting sig fig rules significant- all nonzeros zeros sandwiched bt nonzeros zeros that trail a decimal not significant- placeholders zeros that trail without a decimal.

Chem 120 Midterm Exam 1 (Latest 2023 - 2024) New Full Exam Questions and Answers ( Included ) 100% Correct 1. Properties of gases Answer: - fill and assume shape of container - diffuse and mix in all proportions with other gases - molecules in gas are separated by large distances and interact weakly with each other 2. Variables that describe any gas Answer: - nb of moles - temperature - pressure - volume 3. Pressure Answer: - In Pa - Force (N)/Area (m^2) - force per unit area ...

CHEM 120 Final Exam 1 GRADED A+ (ACTUAL EXAM ) Questions and Answers (Solved) 1. define matter Answer: anything that has mass and takes up space 2. what is not considered matter? Answer: light, heat, electricity 3. definite shape, definite volume Answer: solid 4. indefinite shape, definite volume Answer: liquid 5. indefinite shape, indefinite volume Answer: gas 6. pure substance Answer: one substance; definite and constant composition; can't beseparated into 2 kinds of matter by p...

CHEM 120 Unit 4 Midterm Exam (GRADED A) Questions and Answer Solutions | 100% Correct| Grade A