Chemistry ch 4 exam Study guides, Class notes & Summaries

Which of the following is a heterogeneous mixture? a) Oxygen b) Ammonium sulfide c) Soda pop (e.g. Coke or Slice) d) A bowel of milk and cereal - ANS-d) A bowel of milk and cereal Which of the following salts would be insoluble in water? a) Ammonium chloride b) Silver nitrate c) Lead (I) bromide d) Sodium sulfate - ANS-c) Lead (I) bromide Which of the following changes would DECREASE the solubility of oxygen gas in water? a) Decreasing the temperature of the solution b) Increasing ...

HESI A2 ENTRANCE CHEMISTRY EXAM 2023 QUESTIONS &ANSWERS LATEST UPDATES HESI A2 CHEMISTRY V1/V2 FILE 1. If a Hydrogen isin a compound, what would its oxidation number be? +1 2. What isthe oxidation number of any simple ion? +1 or -1 depending on the charge of the ion 3. How many kilograms are in a pound? 0. kg 4. What is the temperature for freezing point of water in Celsius? 0 degrees Celsius (32°F for Fahrenheit) 5. What is the conversion of Celsius to Fahrenheit? 0°C = 32°F 6...

Which of the following is a heterogeneous mixture? a) Oxygen b) Ammonium sulfide c) Soda pop (e.g. Coke or Slice) d) A bowel of milk and cereal - ANS-d) A bowel of milk and cereal Which of the following salts would be insoluble in water? a) Ammonium chloride b) Silver nitrate c) Lead (I) bromide d) Sodium sulfate - ANS-c) Lead (I) bromide Which of the following changes would DECREASE the solubility of oxygen gas in water? a) Decreasing the temperature of the solution b) Increasing ...

University of Minnesota: BIOL 1901 Biology 150 Notes Properties of organisms: o Highly ordered o Use energy o Genetic information o Reproduce o Composed of cells • (about) ~ 1.5 million species named • Up to 100 million total species • Classified into 3 domains or 6 kingdoms o Kingdoms: Plantae, fungi, Animalia, Protista, Eubacteria, Archaebacteria o Domains: Archaea, Bacteria, and Eukarya CELL THEORY • All living organisms are composed of one or more cells. • ...

HESI Chemistry Questions with Answers and Explanations 1. Which of the following substances allows for the fastest diffusion? A. gas B. solid C. liquid D. plasma Explanation: Diffusion is fastest through gases. The next fastest medium for diffusion is liquid, followed by plasma, and then solids. In chemistry, diffusion is defined as the movement of matter by the random motions of molecules. In a gas or a liquid, the molecules are in perpetual motion. For instance, in a quantity of seemi...

HESI CHEMISTRY QUESTIONS WITH ANSWERS AND EXPLANATIONS 1. Which of the following substances allows for the fastest diffusion? A. gas B. solid C. liquid D. plasma Explanation: Diffusion is fastest through gases. The next fastest medium for diffusion is liquid, followed by plasma, and then solids. In chemistry, diffusion is defined as the movement of matter by the random motions of molecules. In a gas or a liquid, the molecules are in perpetual motion. For instance, in a quantity of se...

HESI A2 ENTRANCEEXAM FOR CHAMBERLAINCOLLGE OF NURSING 2023 QUESTIONS WITH ANSWERS CHEMISTRY HESI A2 CHEMISTRY V1/V2 FILE 1. If a Hydrogen isin a compound, what would its oxidation number be? +1 2. What isthe oxidation number of any simple ion? +1 or -1 depending on the charge of the ion 3. How many kilograms are in a pound? 0. kg 4. What is the temperature for freezing point of water in Celsius? 0 degrees Celsius (32°F for Fahrenheit) 5. What is the conversion of Celsius to Fah...

what is the correct abbreviation for the alkyl substituent, -C(CH₃)₃? - ANS-tBu, this is short for tert-butyl. tert-butyl - ANS--C(CH3)3 (1,1-dimethylethyl) sec-butyl - ANS-CH3CHCH2CH3 (1-methylpropyl) The ____-______ group is a four carbon alkyl group attached to root group on C2. - ANS-sec-butyl _________ strain occurs when the dihedral angle is 0° as in an eclipsed conformation - ANS-Torsional dihedral angle - ANS-the angle between two specified groups in a Newman projection Ne...

what is the correct abbreviation for the alkyl substituent, -C(CH₃)₃? - ANS-tBu, this is short for tert-butyl. tert-butyl - ANS--C(CH3)3 (1,1-dimethylethyl) sec-butyl - ANS-CH3CHCH2CH3 (1-methylpropyl) The ____-______ group is a four carbon alkyl group attached to root group on C2. - ANS-sec-butyl _________ strain occurs when the dihedral angle is 0° as in an eclipsed conformation - ANS-Torsional dihedral angle - ANS-the angle between two specified groups in a Newman projection Ne...

ELABORATED ASSESSMENT AND MANAGEMENT OF PATIENTS WITH ENDOCRINE DISORDERS EXAM QUESTIONS AND ANSWERS (CH. 52) The nurse obtains a complete family history of a client with a suspected endocrine disorder based on which rationale? 1. An allergy to iodine is inherited. 2. It helps determine the client's general status. 3. Endocrine disorders can be inherited. 4. Diet and drug histories are related to the family history. - CORRECT ANSWER -Correct response: Endocrine disorders can be inhe...