Chem 101 exam 1 - Study guides, Class notes & Summaries

Platinum has a face-centered cubic crystal structure and a density of 21.5 g/cm3 . What is the radius of a platinumSelect one: a. 69 pm b. 98 pm c. 139 pm d. 196 pm e. 277 pm Question 2 Correct 4.60 points out of 4.60 Flag question Question text Helium atoms do not combine to form He2 molecules, yet He atoms do attract one another weakly through Select one: a. dipole-dipole forces. b. ion-dipole forces. c. dispersion forces. d. dipole-induced dipole forces. e. hydrogen bonding....

CHEM 101 Exam General Chemistry Chapter 1 With 100% Correct And Verified Answers

Nonelectrolytes - Dissolves, does not dissociate H2O C12H22O11 C6H12O6 CH3OH strong electrolytes - NaCl Ca(OH)2 NH4 All ionics weak electrolytes - NaC2H3O2 --> Na+ + C2H3O2- HC2H3O2--> H+ + CH2COOH- Solution temperature - The higher the temperature, the more the substance will disolve Solution Pressure - DON'T KNOW Ion charge-to-size-ratio - large ion with low charge is less soluble Weak Acids - ALL OTHERS Weak Bases - NH3, C5H5N, others with N Strong Acids - HC...

Chem 101 Exam 2024 Questions With 100% Correct Answers Atoms combine in - ANSWER- small whole-number ratios when forming compounds If the Thompson model were true, what would have happened to the alpha particle beam? - ANSWER- The beam should not interact with the diffuse electron cloud and go straight through each gold atom. The source of the deflection has to be what charge? - ANSWER- Positive Since neutrons also contribute mass to an atom, where would you expect neutrons to exis...

CHEM 101 - Exam 1 Review Concepts Chapters 1-4. Questions and answers latest update

Chem 101 Exam Questions With Answers First periodic table - ANSWER- earth, air, water, fire What are the states of matter? - ANSWER- solid, liquid, gas What makes something solid? - ANSWER- particles are closely spaced, lowest kinetic energy, incompressible, definite shape and volume What makes something a liquid? - ANSWER- particles are closely spaced, but can slide by each other, medium amount of kinetic energy, incompressible, assume the shape of their container, fixed volume W...

Straighter Line Chem 101 Exam 4 Verified Questions And Answers Straighter Line Chem 101 Exam 4 Verified Questions And Answers

A solution of chloroform, CHCl3, and acetone, (CH3)2CO, exhibits a negative deviation from Raoult's law. This result implies that Select one: a. chloroform-chloroform interactions are stronger than chloroform-acetone interactions. b. chloroform-chloroform interactions are weaker than chloroform-acetone interactions. c. acetone-acetone interactions are stronger than chloroform-acetone interactions. d. acetone-acetone interactions are weaker than chloroform-acetone interactions. e. Choice ...

Straighterline chem 101 exam 2 with questions and answers.The distinguishing characteristic of all nonelectrolyte solutions is that they Select one: a. contain ions. b. do not conduct electricity. c. react with other solutions. d. always contain acids. e. conducts heat. Feedback The correct answer is: do not conduct electricity. Question 2 Correct 4.60 points out of 4.60 Flag question Question text If aqueous solutions of Mg(C2H3O2)2 and LiOH are mixed, which insoluble precipitate ...