Latest chem 120 exam 3 - Study guides, Class notes & Summaries

If an atom loses electrons in a redox reaction, we say this atom was: a.) oxidized b.) reduced c.) none of the above d.) an oxidizing agent In the reaction CrO + H₂ → H₂O + Cr, the element being reduced is: a.) all elements are oxidized b.) H c.) Cr d.) O d.) Fe³⁺ What is the oxidizing agent in the reaction Fe³⁺ + V → Fe + V³⁺ a.) V³⁺ b.) Fe c.) V d.) Fe³⁺

Chem 120 final exam | Questions and Correct Answers | Latest Update 2024/2025 | 100% Pass What is the correct order of melting points for the following alkanes, from highest to lowest temperature? - Answer -heptane > hexane > ethane > methane 2. Given an alkane that contains 25 carbon atoms. How many hydrogen atoms are present in its structure? a) - Answer -) 52 3. Which of the following properly describes constitutional (structural) isomers? - Answer -compounds with the same ...

CHEM 120 Exam 1 | Questions and Correct Answers | Latest Update 2024/2025 | 100% Pass Celsius formula - Answer -C= (F-32)/1.8 Kelvin formula - Answer -K=C+273.15 density formula and units - Answer -D (g/mL, g/L, Kg/m^3)= M (kg) / V (m^3, cm^3, L , mL) Precision - Answer -a measure of how close a series of measurements are to one another Accuracy - Answer -how close a measurement is to the true value Law of Conservation of Energy - Answer -En

Chem 120 Exam 1 | Questions and Correct Answers | Latest Update 2024/2025 | 100% Pass Fahrenheit to Celsius Equation - Answer -C=(F-32)/1.8 Celsius to Fahrenheit Equation - Answer -F=1.8C+32 Celsius to Kelvin Equation - Answer -C=K-273.15 Kelvin to Celsius Equation - Answer -K=C+273.15 Rutherford - Answer --Nuclear Theory of the Atom - Directed Alpha particles at a thin sheet of gold and observed they did not go straight through as expected -Principles 1: Most of atom's mass is in ...

chem 120 final exam study guide | Questions and Correct Answers | Latest Update 2024/2025 | Graded A+ chemistry - Answer -the science that tries to understand how matter behaves by studying how atoms and molecules behave scientific method - Answer -ways of learning that emphasizes observation and experimentation (self correcting) observation - Answer -we go out in nature and ask questions we measure or observe some aspect of nature hypothesis - Answer -tentative interpretation of an ob...

Chem 120 final exam | Questions and Correct Answers | Latest Update 2024/2025 | 100% Pass What is the correct order of melting points for the following alkanes, from highest to lowest temperature? - Answer -heptane > hexane > ethane > methane 2. Given an alkane that contains 25 carbon atoms. How many hydrogen atoms are present in its structure? a) - Answer -) 52 3. Which of the following properly describes constitutional (structural) isomers? - Answer -compounds with the same ...

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 120 Exam 1 | Questions and Correct Answers | Latest Update 2024/2025 | 100% Pass SI unit for Temperature - Answer -C F - Answer -(9/5 C) + 32 C - Answer -5/9 (F -32) K - Answer -C+273.15 density - Answer -mass/volume 1 mL - Answer -=1cm^3 = 1cc percent error - Answer -difference from known value/known value x 100 sig fig for Addition/Subtraction - Answer -answer has the same number of decimal places as the factor with the least amount of decimal places sig fig rules for multipl...

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 ...