Chem 120 midterm - Study guides, Class notes & Summaries

CHEM 120 MIDTERM EXAM 1 ( UPDATED 2025 ) | QUESTIONS WITH 100% VERIFIED ANSWERS AND COMPREHENSIVE RATIONALES | GRADED A+

CHEM 120 MIDTERM (CHAPTER 1-3) QUESTIONS WITH 100% CORRECT ANSWERS

CHEM 120 MIDTERM PARTICIPATION QUESTIONS WITH 100% CORRECT ANSWERS

CHEM 120 MIDTERM PARTICIPATION QUESTIONS WITH 100% CORRECT ANSWERS

CHEM 120 MIDTERM EXAM 2 ( UPDATED 2025 ) | QUESTIONS WITH 100% VERIFIED ANSWERS AND COMPREHENSIVE RATIONALES | GRADED A+

CHEM 120 MIDTERM (CHAPTER 1-3) QUESTIONS WITH 100% CORRECT ANSWERS

Chem 120 Midterm (Chapter 1-3)

The change in enthalpy (delta-H) can be calculated as: Δ H = n C p Δ T This is correct whether the reaction is conducted at constant volume or constant pressure or neither. - correct answer true Antoine Lavoisier discovered which element? - correct answer O Which of the following hypotheses is NOT part of John Dalton's "Atomic Theory"? - correct answer Mass is neither cre...

Which of the following hypotheses is NOT part of John Dalton's "Atomic Theory"? Mass is neither created nor destroyed What is the key feature of JJ Thomson's "plum pudding" model of the atom? The positive charge is concentrated in a nucleus In Rutherford's gold foil experiment, what result surprised him? A few alpha particles bounced back from the foil Isotopes have: The same number of protons but different numbers of neutrons The isotope Carbon-14 has how many neu...

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 ...