Exams & Certification
Figure are [WO possible Lewis structures for the sulfite ion (SO3 Using formal charges determine which is the more stable structure or B Show all your workings_ Figure Choosing from the structures given in Figure draw out the three resonance structures which will be the most important contributors t0 the hybrid structure of SO;? Explain […]
What is the formal charge on the sulfur atom in SO3 The Correct Answer and Explanation is: Correct Answer: The formal charge on the sulfur atom in SO₃ (sulfur trioxide) is 0. Explanation To determine the formal charge on the sulfur atom in sulfur trioxide (SO₃), it is necessary to use the formal charge formula:
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Thick or infinitely thin. In these cases, we cannot use the lumped capacitance model or semi-infinite solid approximations and must instead use the heat diffusion equation to model the transient response. Let’s consider the case of a plane wall of thickness 2L which is suddenly subjected to convection at its surface. (a) Write the heat
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Predict the reactivity of trypsin at pH 14. Enzymes work best at their optimum pH and trypsin works best at pH round 8-9 pH so if it’s increased pH is up to 14, trypsin will not work at pH 14 and get denatured. C 5. What is the optimal temperature for the enzyme in graph
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INTRODUCTION HUMAN SKIN COLOR: EVIDENCE FOR SELECTION Our closest primate relatives have pale skin under dark fur, but human skin comes in a variety of shades from pinkish white to dark brown. How did this variation arise? Many biological traits have been shaped by natural selection. To determine whether the variation in human skin color
How many grams of aluminum are present in 25.0 g of Al2(SO4)3? Molar mass( Al2(SO4)3) = 342.17 g/mol The Correct Answer and Explanation is: Correct Answer:4.93 grams of aluminum are present in 25.0 g of Al₂(SO₄)₃. Explanation:To determine the mass of aluminum in a given amount of aluminum sulfate, begin by examining the formula: Al₂(SO₄)₃.
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The chemical formula of Aluminium sulphate is Al2(SO4)3. The valency of Aluminium is 3. The Correct Answer and Explanation is: Correct Answer:The chemical formula of aluminum sulfate is Al₂(SO₄)₃, and the valency of aluminum is 3. ExplanationAluminum sulfate is a compound formed from aluminum ions and sulfate ions. To determine its correct chemical formula, a
The chemical formula of Aluminium sulphate is Al2(SO4)3. The valency of Aluminium is 3. Read More »
Connective tissue matrix is composed of _ fibers and ground substance cells and fibers all organic compounds ground substance and cells The Correct Answer and Explanation is: Correct Answer: fibers and ground substance Explanation: Connective tissue is a fundamental type of tissue in the human body that plays a vital role in support, protection, insulation,
Convert the following numbers into standard notation: 12) 8.65 x 10-1 13) 9.11 x 103 14) 5.40 x 101 15) 1.76 x 100 16) 7.4 x 10-5 The Correct Answer and Explanation is: Answers in Standard Notation: Explanation Scientific notation expresses very large or very small numbers using powers of ten. Converting from scientific to
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Change each of the following to scientific notation: 1. 0.000147 = 1.47 x 10^-4 2. 0.543 = 5.43 x 10^-1 3. 648 = 6.48 x 10^2 4. 3.0 x 10^-3 5. 7.1 x 10^64 6. 833 = 8.33 x 10^2 7. 7530 = 7.53 x 10^3 8. 9.2 x 10^4 9. 71,200 = 7.12 x