Exams & Certification

The term “recombinant DNA technology” refers to A. deliberately moving genes from one type of cell into another so that the new cell synthesizes that specific gene product. B. selective breeding. C. ensuring that a specific gene will be replicated over-and-over. D. synthesizing DNA from scratch. The correct answer and explanation is: The correct answer […]

CVP analysis, focusing on target net income rather than operating income ________. A) will increase the breakeven point B) will decrease the breakeven point C) will not change the breakeven point D) will help managers construct a better capital policy explain the answer The correct answer and explanation is: The correct answer is A) will

Write total number of valence electrons, draw Lewis Structures of these three compounds, AND justify their 3D shape using VSEPR (LP and bonds). 1. NI3 2. CF3Cl The Correct Answer and Explanation is: NI₃ (Nitrogen Triiodide) VSEPR Justification: 2. CF₃Cl (Trifluoromethane Chloride) VSEPR Justification: Conclusion:

Formula: AsF_(5) 5+(7**5) Lewis structure 5+35 =>40 Molecular Shape Drawing Electronic groups: 5 sigma bonded pair Electronic Shape: Molecular Shape: Ideal Bond Angle: Hybridization: sp^(3)d 10. Formula: SF_(4) Molecular Shape Drawing Electronic groups: Electronic Shape: Molecular Shape: Ideal Bond Angle: Hybridization: 8 9.Formula:AsFs 6 + (+ 5) Lewis structure 5+35 0h= Molecular Shape Drawing As

All of the following antibiotics are effectively used as antimicrobial agents after oral administration EXCEPT? a. Amikacin b. Cefaclor c. Cephalexin d. Amoxicillin e. Azithromycin The correct answer and explanation is: The correct answer is a. Amikacin. Amikacin is an aminoglycoside antibiotic, and it is generally not effective when taken orally. This is because it

What does “covalent” mean? The correct answer and explanation is: “Covalent” refers to a type of chemical bond where two atoms share one or more pairs of electrons. This sharing occurs between non-metal atoms, allowing them to achieve more stable electron configurations, typically aiming to fill their outermost electron shells. In a covalent bond, the

Name of Electron Arrangement Wedge-and-dash structure: Cl; Compound Lewis Structure Name of Shape CCl4 C2H6 SiH4 SF6 BeCl2 BrF3 PH3 BBr3 CIBr3 SCl2 RbBr KBr AsF5 SbF6 The Correct Answer and Explanation is: Based on the provided table and the principles of VSEPR theory, here are the correct entries for the compound CCl₄ (carbon tetrachloride):

What does “ionic” mean? The correct answer and explanation is: “Ionic” refers to a type of chemical bond that occurs when atoms transfer electrons from one to another, resulting in the formation of charged particles known as ions. These ions are atoms or molecules that have gained or lost electrons and therefore carry a positive

Which is not true about solubility? A. The higher the temperature, the faster a solute can be dissolved in a solvent B. The nature of the solute and the amount of solvent also determine how fast the solute dissolves in a solvent. C. The size of the particles affects the dissolving process. The finer the

There are five kinds of solutions. Gas in liquid is one of them, therefore, which of the given examples is one of the solutions? A. Air and water B. Cola or Soft drink C. Oxygen and salt D. Rocks and solvent The correct answer and explanation is: The correct answer is B. Cola or Soft