Chem 105 exam 2 - Study guides, Class notes & Summaries

Chem 101 Exam Questions & Revised Correct Detailed Answers Guaranteed Pass 1) What is the formula of the nitride ion? A) NO3(2-) B) N(3-) C) NO2(-) D) NO3(3-) E) NO3(-) - ANSWER B) N(3-) 2) Radium-226 decays by alpha decay to A) carbon-14 B) polonium-218 C) radon-222 D) barium-131 E) cobalt-60 - ANSWER C) radon-222 Radium(226/88Ra)- Helium(4/2He) = Radon(222/86Ra) 3) Krypton-79 half-life of 35 hours. How many half-lives have passed after 105 hours?...

CHEM 219 EXAM 1 QUESTIONS WITH ALL CORRECT ANSWERS Describe how individual resonance structures impact the true structure of a molecule or polyatomic ion. - Answer Each contributing individual resonance structure contributes characteristics to the overall hybrid structure of the compound. The hybrid "averages" bond lengths and formal charges by delocalizing them among atoms that share them in each contributing individual resonance structure. On a piece of scrap paper, draw the resonance s...

CHEM 343 Lab Final Exam | Questions with Verified Answers Acetic acid is a weak acid. When acetic acid dissolves in water to make a solution, what is the major form of acid in the solution? a. Water b. Hydronium ion c. Acetate ion d. Hydroxide ion e. Acetic acid Rank the following compounds in order of their increasing pKa (lowest pKa to highest): water, methane, benzoic acid, HCl a. HCl, water, benzoic acid, methane b. HCl, benzoic acid, water, methane c. water, methane, HCl, benzoic acid d....

CHEM Exam Questions with Answers The combustion of ethane (C2H6) is represented by the equation: 2C2H6(g) + 7O2(g) → 4CO2(g) + 6H2O(l) In this reaction: A. the rate of consumption of ethane is seven times faster than the rate of consumption of oxygen. B. the rate of formation of CO2 equals the rate of formation of water. C. water is formed at a rate equal to two-thirds the rate of formation of CO2. D. the rate of consumption of oxygen equals the rate of consumption of water. E. ...

Chem exam 2 study guide - All the information needed for exam 2 of chemistry 105 QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+

Labs:  Complete blood count (CBC)- Page 720-721  Basic metabolic panel (BMP/Chem 7)- - BUN: measure urea - Creatine: renal function - Potassium: regulates fluid balance - Normal: 3.5 - 5.3 mEq/L - Sodium: regulates fluid balance - Normal: 135 – 145 mEq/L - Calcium: bone strength - Normal: 4.5 – 5.5 mEq/L - Chloride: regulates fluid balance - Normal: 95 – 105 mEq/L - Glucose: 70-110 mg/dL Specimens Procedures:  Blood glucose1. Make sure finger is warm 2. Hold in dep...

First Semester Study Guide AP Chem Buck Exam 196 Questions with Verified Answers Salts containing which of the following ions are generally insoluble in cold water? a. nitrate b. acetate c. phosphate d. potassium e. ammonium - CORRECT ANSWER C. Phosphate Which of the following changes alone would cause a decrease in the value of Keq for the reaction represented above? a. Decreasing the volume of the reaction vessel b. Adding a catalyst c. Increasing the volume of the reacti...

CHEM Exam Questions with Answers The combustion of ethane (C2H6) is represented by the equation: 2C2H6(g) + 7O2(g) → 4CO2(g) + 6H2O(l) In this reaction: A. the rate of consumption of ethane is seven times faster than the rate of consumption of oxygen. B. the rate of formation of CO2 equals the rate of formation of water. C. water is formed at a rate equal to two-thirds the rate of formation of CO2. D. the rate of consumption of oxygen equals the rate of consumption of water. E. ...

CHEM Exam Questions with Answers The combustion of ethane (C2H6) is represented by the equation: 2C2H6(g) + 7O2(g) → 4CO2(g) + 6H2O(l) In this reaction: A. the rate of consumption of ethane is seven times faster than the rate of consumption of oxygen. B. the rate of formation of CO2 equals the rate of formation of water. C. water is formed at a rate equal to two-thirds the rate of formation of CO2. D. the rate of consumption of oxygen equals the rate of consumption of water. E. ...

First Semester Study Guide - AP Chem – Buck Exam Questions and Answers | 100% Pass Salts containing which of the following ions are generally insoluble in cold water? a. nitrate b. acetate c. phosphate d. potassium e. ammonium - ️️ Correct-C. Phosphate Which of the following changes alone would cause a decrease in the value of Keq for the reaction represented above? a. Decreasing the volume of the reaction vessel b. Adding a catalyst c. Increasing the volume of the reaction ...