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

Chem 120 Midterm Exam 2 (Latest 2023 - 2024) New Full Exam Questions and Answers ( Included ) 100% Correct 1. Scientific Method Steps Answer: Observations, Hypothesis, Experiment, Data Collection (Results), Theory 2. independent variable Answer: The experimental factor that is manipulated; the variablewhose effect is being studied 3. dependent variable Answer: The outcome factor; the variable that may change in re-sponse to manipulations of the independent variable. 4. quantitative ...

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 Unit 4 Midterm Exam 1. The correct isotope symbol for the isotope containing 1 proton and two neutrons – He 2. Which are the elements with the following electronic configuration: 1s2 2 s2 2p6 3s1 – Sodium 1s2 2s2 2p5- Fluorine 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p2 – Geremanium (Ge) 3. Provide 4 examples of substances with ionic bonds LiF - Lithium Fluoride, LiCl - Lithium Chloride, LiBr – Lithium Bromide, LiI - Lithium Iodide, Nacl,Calcium Nitrate 5. Name the following: N2S3 - dinitr...

CHEM 120 Week 4 Midterm Exam (Fall 2020) Question: Joe conducts an experiment to test the effectiveness of a new drug for cancer. Which of the following variables would be easiest to control? Question: A mixture containing 50 grams of carbon and 75 grams of oxygen is sealed in a flask. The total mass of the system is 225 grams. The flask is heated to cause the carbon and oxygen to react. The sealed flask is What is the mass of the sealed flask? Question: Aluminum has a density of 2.7 g/cm3....