chemistry

Chem lab Questions and Answers | 2026 Update | 100% Correct. Topics covered for quiz -Reactions of Unsaturated Hydrocarbons Alcohols and Phenols Aldehydes and Ketones Peptides and Proteins Saponification and Soap How is the pH of a solution related to the H3O+? -H30+ is the negative log of the hydrogen ion concentration. As in increases it makes the pH more acidic, less basic Using the equation of Kw, explain how OH- changes when more H3O+ is added - Kw is the ion constant product of w...

Chem Exam 4 Questions and Answers | 2026 Update | 100% Correct. A 35-year-old pregnant female has the following lab results. What is the most likely explanation for these results? TSH 3.4 mIU/L (0.3-4.2) T4 5.4 mU/L (0.4-4.0) FT4 1.5 ng/dL (0.9-1.7) T3 220 ng/dL (80-200) FT3 3.3 pg/mL (2.8-4.4) -Primary hyperthyroidism -Secondary hyperthyroidism -Subclinical hypothyroidism -Euthyroidism Euthyroidism What are the expected lab results in a patient suspected of having Hashimoto's d...

Chem Exam 3Questions and Answers | 2026 Update | 100% Correct.

CHEM EXAM 3 Questions and Answers | 2026 Update | 100% Correct.

CHEM 3053 - Exam 3 Questions and Answers | 2026 Update | 100% Correct. Nucleophile Have electrons available to donate Electrophile Have the ability to accept electrons Hoffmann's rule When elimination occurs to give the less substituted alkene, we say it follows (Think t-Bu) Zaitsev's rule When elimination occurs to give the more substituted alkene product, we say it follows? Anti addition An addition that places the parts of the adding reagent (e.g. Br2) on opposite sides of...

CHEM 3053 - Exam 3Questions and Answers | 2026 Update | 100% Correct. Nucleophile Have electrons available to donate Electrophile Have the ability to accept electrons Hoffmann's rule When elimination occurs to give the less substituted alkene, we say it follows (Think t-Bu) Zaitsev's rule When elimination occurs to give the more substituted alkene product, we say it follows? Anti addition An addition that places the parts of the adding reagent (e.g. Br2) on opposite sides of ...

CHEM 1212 Midterm Review LSU, chem 1212 midterm Questions and Answers | 2026 Update | 100% Correct. Exclamation Point (icon) -Irritant to skin and eyes, skin sensitizer, toxic, respiratory tract irritant Test tubes pouring on metal and hands (icon) -Corrosive to skin and metal Fire (icon) -flammable, emits flammable gasses, pyrophoric O with fire (icon) -oxidizer, oxidizing agent Human body with gas inside (icon) -general health hazard, respiratory sensitizer, carcinogen, organ toxicity ...

Chem 1112 Lab Final Questions and Answers | 2026 Update | 100% Correct. How many pictograms are in the Global Harmonized System? -9 What safety clothing would you wear on a regular basis in the lab (pick all that apply) --Safety glasses/googles -shoes that cover the whole top of your foot -pants that cover your legs Who should you report accidents to? (Pick all that apply) --The instructor -One of the TAs Why is it important that we do not startle other workers in the lab? - Because st...

CHEM 135 Test 2 Questions and Answers | 2026 Update | 100% Correct. highest vapor pressure= lowest IMF Highest BP= highest IMF highest ΔHvap= highest IMF Most viscious highest IMF highest surface tension highest IMF The vapor pressure over a liquid incre

CHEM 134-EXP #1- Exam 1Questions and Answers | 2026 Update | 100% Correct. The Erlenmeyer flask used in the experiment is not well insulated. How does it affect each flow rate calculated from the enthalpy of fusion or from specific heat capacity? Do not mention "inaccurate", "wrong", "inconsistent", "different", etc. Determine if the heat flow rate would be higher or lower. Hint: Consider the direction of heat flow (Chapter 9) Heat will escape from the flask to the...