Nursing Perfection Study Station

CHEM 210 Practice Questions with Correct Answers What is a systematic error and how can you detect it? - Answer-A flaw in equipment of experiment design Can detect by analyzing a known sample (certified reference material) or a blank sample. What is a random error? - Answer-An error from uncontrolled variables in an experiment. Always present and cannot be eliminated. What is a gross (blunder) error? - Answer-An error that arises from human mistakes in experimental procedure. i.e ca...

CHEM 210 Exam 2 Questions with Correct Answers A reaction in which electrons are transferred from one reactant to another - Answeroxidation-reduction Loss of electrons - Answer-Oxidation Gain of electrons - Answer-Reduction Oxidation takes place at the surface of an electrically conductive material called - Answer-anode The reduction takes place at another electrically conductive surface called the - Answercathode __________ cells use a spontaneous oxidation-reduction reaction to produ...

CHEM 210 Midterm 2 Exam Questions and Answers All Correct Identify the equivalence point on the titration curve. Define the end point of a titration. - Answer-The equivalence point of a titration is reached when the moles of titrant added are stoichiometrically equal to the moles of analyte present in solution. This is observed on the titration curve as the point in the center of the steepest part of the curve, which correlates to the greatest concentration (pH) change per volume of add...

CHEM 210 Final Exam Questions with Answers All Correct Which molecule is an ester - Answer All of the carbon backbones from amino acids end up as intermediates in the ________. - Answer-citric acid cycle When 2-butene reacts completely with bromine, the product is - Answer-2,3- dibromobutane. Amino acids that can be synthesized in the body are called ______ amino acids. - Answer-nonessential Which conversion is accomplished during glycolysis? - Answer-glucose to pyruvate Every turn of...

CHEM 210 Reactions Test Questions and Answers All Correct Describe the mechanism for the electrophilic addition of a strong acid. - Answer-Step 1) An alkene grabs a hydrogen off of a strong acid, forming a carbocation intermediate. Step 2) The conjugate base of the acid (an anion now) bonds to the open shell carbocation What is the regioselectivity of electrophilic addition reactions? - Answer-Markovnikov What is Markovnikov regioselectivity? - Answer-States that the major product is d...

CHEM 210 Exam Questions and Correct Answers What is a cathode? - Answer-a negative electrode at which reduction occurs What is an anode? - Answer-the positive electrode at which oxidation occurs Good way to remember which is which for anode and cathode - Answer-An Ox and a Red Cat What is the two electrode setup? - Answer-anode and cathode What is a galvanic cell? - Answer-A cell in which spontaneous oxidation-reduction reactions produce electrical energy (anode and cathode Zn and Cu) ...

CHEM 210 Chapter 10 Test Questions and Answers All Correct Organic Chemistry - Answer-the study of the compounds of carbon Organic Compounds are - Answer-- made up of carbon and other elements: hydrogen, oxygen, and nitrogen Also present in some organic compounds are: - Answer-- sulfur, phosphorus, and a halogen (F, Cl, Br, I) CO2 is inorganic because: - Answer-it is less reactive and contains no hydrogen Why are we carbon based life-forms, instead of Si or Ge based life forms? - Answe...

CHEM 210 Test 3 Questions with Correct Answers Where Beer's Law Fails - Answer-1. If what is measured has equilibrium shifts 2. With high reflection (worse when concentration is high) 3. When path length isn't constant (there are multiples) 4. When the extinction coefficient isn't constant (there is polychromatic light) 5. When Stray light can be reflected What is the main advantage of double-beam instruments over single-beam instruments? - Answer-You don't have to calibrate the do...

Nccco Core Exam Questions With All Answers If taking sides strain on a boom what concerns the operator the most - ANSWER- Boom damage If a crane load chart has capacities listed in the shaded area this means that - ANSWER- If overloaded structural confidence will be compromised As the layers of rope on a drum increase the allowable line Pull wil - ANSWERDecrease Of the following actions which one will most likely cause a side load condition - ANSWER- Abruptly starting or stopping the s...

NCCCO CORE 2024 TEST QUESTIONS ALL ANSWERED Before leveling a mobile crane on outriggers, an operator should ensure: - ANSWERthere is no weight of the crane bearing on any tires Operating a mobile crane with a long boom, on uneven ground, what support condition should be considered? - ANSWER- Keeping 90 degree angle between cylinder rod and pad What is the primary purpose fir a rooster sheave or auxiliary boom point sheave? - ANSWER- Separate the boom hoist lines How many randomly brok...