Exams & Certification
The Lewis structure of HCN (H bonded to C) shows that has non bonding electron pairs.A) C. 1B) N, 2C) C, 2D) N,1 The correct answer and explanation is : The correct answer is D) N, 1. Explanation: In order to understand the number of non-bonding electron pairs in the Lewis structure of hydrogen cyanide […]
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The Lewis structure of AsH3 shows nonbonding electron pair(s) on As. A) 0B) 1C) 2D) 3 The correct answer and explanation is : The correct answer is B) 1. Explanation: Arsenic trihydride (AsH₃), also known as arsine, is a molecule in which arsenic (As) is bonded to three hydrogen (H) atoms. To understand the number
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Silver has an atomic number of 47. a. Give the number of protons, neutrons, and electrons in a neutral atom of the most common isotope, Ag-107. b. How do the numbers of protons, neutrons, and electrons in a neutral atom of Ag-109 compare with those of Ag-107? The correct answer and explanation is : a.
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Relevant costs for a make or buy decision include all of the following EXCEPT: The correct answer and explanation is : The correct answer is “current direct material costs for the part”. Explanation: In a make or buy decision, a company evaluates whether it should produce a product in-house (make) or outsource it (buy). The
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Bone develops from fibrous membranes and cartilage. Which of the following is the term referring to the development of bone from cartilage? A. Endochondral ossification B. Intramembranous ossification C. Periosteal ossification D. Remodeling The correct answer and explanation is : The correct answer is A. Endochondral ossification. Explanation: Endochondral ossification refers to the process of
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Why isn’t the average atomic mass of silver given on the periodic table simply 108? a. Calculate the average mass in grams of an individual atom of silver. b. Calculate the mass in grams of 10 trillion silver atoms. c. Calculate the mass in grams of 5.00 × 1045 silver atoms. The correct answer and
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What statement is accurate regarding double-entry bookkeeping? Multiple Choice eBook With double-entry bookkeeping, if the transaction amounts are not equal, the bookkeeper knows there is a mistake. Double-entry bookkeeping requires a second person to double-check the bookkeeper’s numbers. When using double-entry bookkeeping, it is not necessary to prepare a trial balance. Tax accountants must use
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Silver has an atomic number of 47. a. Give the number of protons, neutrons, and electrons in a neutral atom of the most common isotope, Ag-107. b. How do the numbers of protons, neutrons, and electrons in a neutral atom of Ag-109 compare with those of Ag-107? The correct answer and explanation is : a.
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What is the correct name of the compound SnSe2? Oa. tin tetraselenideb. tin (IV) selenidec. Titanium(III) Bromided. tin selenide The correct answer and explanation is : The correct name for the compound SnSe₂ is b. tin (IV) selenide. Explanation: To name the compound SnSe₂, we need to look at the elements involved and their oxidation
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Karl Marx and which of the following individuals wrote the Communist Manifesto for the Communist League? Frederick NietzscheFriedrich EngelsFriedrich ListFranz Liszt The correct answer and explanation is : The correct answer is Friedrich Engels. Karl Marx and Friedrich Engels co-wrote the Communist Manifesto in 1848. The manifesto was commissioned by the Communist League, a group