Chem 120 exam 2 2025 - Study guides, Class notes & Summaries

Chem 120 Exam #2 | Questions and Correct Answers | Latest Update 2024/2025 | 100% Pass chemical bond - Answer -the attractive forces that holds two atoms together in a more complex unit ionic bond - Answer -a chemical bond formed through the transfer of one or more electrons from one atom to another atom, metal and nonmetal ionic compound - Answer -a compound in which ionic bonds are present valence electrons are transferred from a metal to a nonmetal, solid at room temperature coval...

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 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 Exam #1 | Questions and Correct Answers | Latest Update 2024/2025 | Graded A+ define matter - Answer -anything that has mass and takes up space what is not considered matter? - Answer -light, heat, electricity definite shape, definite volume - Answer -solid indefinite shape, definite volume - Answer -liquid indefinite shape, indefinite volume - Answer -gas pure substance - Answer -one substance; definite and constant composition; can't be separated into 2 kinds of matter by ...

ACS Gen Chem 1 Exam Questions and Answers | 100% Pass The molecule ::O=C=:N-H has been detected in gas clouds between stars. The predicted C-N-H bond angle is about 90 109 120 180 - ️️ Correct-120 When the carbon-carbon bonds in ethane (C2H6), ethane (C2H4), benzene (C6H6), are arranged in order of increasing length (shortest bonds first), what is the correct order? C2H6 < C2H4 < C6H6 C2H4 < C2H6 < C6H6 C6H6 < C2H4 < C2H6 C2H4 < C6H6 < C2H6 - ️️ Corre...

CHEM 120 WEEK 8 FINAL EXAM 2 LATEST VERSIONS 2024- 2025 ACTUAL EXAM 150 QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES How many bonds can nitrogen have? Which rule or principle should be used? A) Five bonds; octet rule. B) Three bonds; octet rule. C) Three bonds; the Hund's rule. D) Five bonds; the Aufbau Principle. - Answer️️ -B When two hydrogen atoms meet, they will attract to each other and form a bond (and a H2 molecule). Why? A) Because electrons like to stay togethe...