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 #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 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 | Questions and Correct Answers | Latest Update 2024/2025 | 100% Pass B - Answer -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. C - Answer -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 together. B) Because electrons li...

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 | 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 ...

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 ...