Chem 120 final Study guides, Class notes & Summaries

scientific notation correct answer: 3.94 x 10⁷= 0. = 8.0 x 10⁻⁶ measured v. exact numbers correct answer: measured = obtained through measurement and are uncertain exact = obtained through counting and are certain precision v. accuracy correct answer: precision = close to each other accuracy = close to the actual number conversion factor correct answer: a ratio of equivalent measurements used to convert a quantity from one unit to another density correct answer: d = m/...

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. correct answer: 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 together. B) Because electrons like to be paired up. C) Because there is attraction between the electron in one hydrogen atom an...

CHEM 120 Final Exam Review (Version 2), CHEM 120: Introduction to General, Organic & Biological Chemistry with Lab, Verified and Correct Answers, Chamberlain College of Nursing.

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Chem 120 final exam questions and answers 2024.

CHEM 120 Final Exam 1 GRADED A+ (ACTUAL EXAM ) Questions and Answers (Solved) 1. define matter Answer: anything that has mass and takes up space 2. what is not considered matter? Answer: light, heat, electricity 3. definite shape, definite volume Answer: solid 4. indefinite shape, definite volume Answer: liquid 5. indefinite shape, indefinite volume Answer: gas 6. pure substance Answer: one substance; definite and constant composition; can't beseparated into 2 kinds of matter by p...

CHEM 120 Final Exam Review (Latest 2023 - 2024) New Full Exam Questions and Answers ( Included ) 100% Correct 1. significant figures Answer: a digit that is either reliably known or closely estimated 2. Significant Figure Rules Answer: 1. All non-zero digits are always significant 2. Zeroes between non-zero digits are always significant 3. Zeroes to left of first non-zero digit (either before or after decimal point) are never significant 4. Zeroes to the right of last non-zero digit ...

CHEM 120 FINAL EXAM (PRACTICE PROBLEMS) QUESTIONS WITH 100% CORRECT ANSWERS

Levelling Effect correct answer: the inability of a solvent to differentiate amongst the relative strength of all acids OH- correct answer: the strongest base possible H3O+ correct answer: the strongest acid possible Differentiating effect correct answer: the ability of a solvent to differentiate among the relative strengths of all acids Common Ion Effect correct answer: the shift in equilibrium caused by the addition of a compound having an ion in common with the dissolved subs...

Chem 120 final exam questions and answers 2024