Exams & Certification
How many electrons would there be in a calcium cation with a 2+ charge (Ca2+)? The Correct Answer and Explanation is: The correct answer is 18. To determine the number of electrons in a calcium cation with a 2+ charge (Ca²⁺), we must first understand the properties of a neutral calcium atom. We can find calcium […]
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1/3 is the additive inverse of 3. The correct answer and explanation is: The statement “1/3 is the additive inverse of 3” is incorrect. The additive inverse of a number is the number that, when added to the original number, results in zero. The additive inverse of a number aa is represented as −a-a. For
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A horizontal pipe carries a smoothly flowing liquid of density 1110 kg/m^3. At Locations 1 and 2 along the pipe, the diameters are d1 = 5.45 cm and d2 = 2.83 cm, respectively. The flow speed at Location 1 is 2.83 m/s. What is the pressure difference ΔP between Location 2 and Location 1 (including
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A horizontal pipe carries a smoothly flowing liquid of density 1290 kg/m^3. At Locations 1 and 2 along the pipe, the diameters are d1 = 5.75 cm and d2 = 2.17 cm, respectively. Side view of pipe with two diameters. At location 1, the diameter of the pipe is d subscript 1. At location 2,
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What type of immunity results in the generation of memory and how is that memory generated? The correct answer and explanation is: The type of immunity that results in the generation of memory is adaptive immunity. This immunity is highly specific and is capable of remembering past infections to provide faster and more effective responses
A piezometer and a stagnation tube are tapped into a horizontal pipe as shown in the figure. Suppose, point 1 and point 2 are close to each other. Answer the following questions. Water 1 2 1. Determine static pressure. [Select] Pa, gage 2. Determine stagnation pressure. [Select] Pa, gage 3. Determine the velocity in the
What is the pH of a 0.85 M HClO4 (perchlorate acid, a strong acid) solution? The correct answer and explanation is: The pH of a 0.85 M HClO₄ (perchloric acid) solution is 0.070. Explanation: Perchloric acid (HClO₄) is a strong acid, meaning it dissociates completely in water. When a strong acid like HClO₄ dissolves in
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Malaysia Collins The water that had poured from the broken pipe finally slowed to a 1 dent 2 trickle (3) streak (4) sip The Correct Answer and Explanation is: The correct answer to the question is 2. trickle. Here is an explanation: The sentence “The water that had poured from the broken pipe finally slowed to
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How would you genetically engineer a gene construct to produce human antithrombin in goat’s milk? The correct answer and explanation is: To genetically engineer a gene construct to produce human antithrombin in goat’s milk, the following steps would be undertaken: The use of goats for biopharming (producing proteins in animal milk) is advantageous because it
Actual assembly of sugars during photosynthesis— A. Occurs during light independent reactions B. Takes place in the stroma C. Requires NADPH D. Requires ATP E. Does all of these The correct answer and explanation is: The correct answer is E. Does all of these. The assembly of sugars during photosynthesis is part of the light-independent
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