Dichromate - Study guides, Class notes & Summaries

Chemistry 121 Exam #1 Questions and Answers 100% Pass Hydroxide - Correct Answer ️️ -OH- Acetate - Correct Answer ️️ -C₂H₃O₂⁻ Nitrate - Correct Answer ️️ -NO₃⁻ nitrite - Correct Answer ️️ -NO₂⁻ Oxide - Correct Answer ️️ -O²⁻ Sulfide - Correct Answer ️️ -S²⁻ Sulfite - Correct Answer ️️ -SO₃²⁻ Sulfate - Correct Answer ️️ -SO₄²⁻ Carbonate - Correct Answer ️️ -CO₃²⁻ Chromate - Correct Answer ️️ -CrO₄²⁻ Dich...

List the disadvantages of using formalin as a fixative. - ️️1. rate of formalin fixation is slow, complete fixation takes several days. (adequate in 8hrs) 2. may cause dermatitis in some workers 3. unbuffered formalin in solutions can produce precipitates in tissues (esp. blood-rich tx) 4. concentrated formaldehyde can polymerize, forming paraformaldehyde, reducing working strength of solution and any formalin solution prepared from it. What solution would remove the precipitate forme...

Chemistry 099 Montgomery College- Polyatomic Ions Study Guide Acetate - ANSWER-C2H3O2- Cyanide - ANSWER-CN- Nitrate - ANSWER-NO3- Nitrite - ANSWER-NO2- Chromate - ANSWER-CrO4 2- Dichromate - ANSWER-Cr2O7 2- Hypochlorite - ANSWER-ClO-

Polytomic Ions Exam Questions and Answers Hydrogen Carbonate - Answer-HCO3- Hydrogen Sulfate - Answer-HSO4- Hydrogen Sulfite - Answer-HSO3- Hypochlorite - Answer-ClO- Hydroxide - Answer-OH- Iodate - Answer-IO3- Iodite - Answer-IO2- Nitrate - Answer-NO3- Nitrite - Answer-NO2- Perchlorate - Answer-ClO4- Permanganate - Answer-MnO4- Thiocyanate - Answer-SCN- Carbonate - Answer-CO3 -2 Chromate - Answer-CrO4 -2 Dichromate - Answer-Cr2O7 -2 Oxalate - Answe...

Histotechnology - FixationThe primary purpose of fixation is to: a. stop enzymatic action b. remove the water from the tissue c. provide support for the tissue d. autolyze the tissue - correct answers a Which of the following fixatives contains picric acid, formalin, and acetic acid? a. Zenker b. Helly c. Bouin d. Zamboni - correct answers c The volume of fixative should exceed the volume of the tissue by: a. 1 time to 2 times b. 5 times to 10 times c. 15 times to 20 ...

Chemistry 121 Exam #1 Questions and Answers 100% Pass Hydroxide - Correct Answer ️️ -OH- Acetate - Correct Answer ️️ -C₂H₃O₂⁻ Nitrate - Correct Answer ️️ -NO₃⁻ nitrite - Correct Answer ️️ -NO₂⁻ Oxide - Correct Answer ️️ -O²⁻ Sulfide - Correct Answer ️️ -S²⁻ Sulfite - Correct Answer ️️ -SO₃²⁻ Sulfate - Correct Answer ️️ -SO₄²⁻ Carbonate - Correct Answer ️️ -CO₃²⁻ Chromate - Correct Answer ️️ -CrO₄²⁻ Dich...

Propane (C₃H₈) reacts with oxygen in the air to produce carbon dioxide and water. In a particular experiment, 38.0g of Carbon Dioxide are produced from the reaction 22.05g of propane with excess oxygen. What is the % yield in this reaction? -94.5 -66.0 -86.4 -38.0 -57.6 correct answer: 57.6 Gaseous argon has a density of 1.40 g/L at standard conditions. How many argon atoms are in 1.00L of argon gas at standard conditions? -4.76x10²² -6.02x10²³ -3.43x10²⁵ -1.59...

Histotechnology - FixationThe primary purpose of fixation is to: a. stop enzymatic action b. remove the water from the tissue c. provide support for the tissue d. autolyze the tissue - correct answers a Which of the following fixatives contains picric acid, formalin, and acetic acid? a. Zenker b. Helly c. Bouin d. Zamboni - correct answers c The volume of fixative should exceed the volume of the tissue by: a. 1 time to 2 times b. 5 times to 10 times c. 15 times to 20 ...

OCR A Level Chemistry A (H432) Chemistry B (H433)Ethanol is oxidised to ethanoic acid using acidified potassium dichromate(IV) solution. The reaction is heated under reflux using the equipment shown in the diagram below. What is the reason for heating under reflux? A. to ensure even heating B. to prevent any substances escaping C. to boil the mixture at a higher temperature D. to allow efficient mixing Your answer [1] 2. A chemist compares the rates of hydrolysis of 1-chloropropane and ...