Which of the following is not a correct mass of one sodium atom? a) 23 amu b) 23 g c) 3.82x10-23 kg d) Two are incorrect e) None of the above

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Q: The numbers of amino acid synthesized in our body * O (a) 20 O (b) 30 O (c) 40 O (d) 10

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Q: 11. Calculate the normality of a potassium dichromate solution prepared by placing 9.67 grams of…

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Q: Consider the structures below: How many is/are Lewis base? 0 HC1 BC13 CH₂OH O a. 5 O b.0 O c. 1 O…

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Q: Provide the appropriate IUPAC name for the following organic molecules CH₂CH₂C=CCHCH₂CH₂ L CH₂ I CH₂…

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Q: Which acid has the strongest conjugate base? O a. phenol O b. water OC. ethanol O d. all of the…

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Q: Draw the structure of phosphatidylethanolamine with stearate esterified at C2 and palmitoleate…

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Q: 2. Using the same TEMPO/bleach reaction you performed in lab, what would be the product for the…

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Q: 1. Which of the following is/are true when Ca(CH3COO)2 is dissolved in water? 1. The salt will…

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Q: OT₂ > Ti Or, >₂ it cannot be determined O 7₁-7₂ Kinetic Energy Number of Molecules with a Particular…

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Q: 1. Which solution-0.50 M NaCl or 0.25 M SrCl₂-has the larger concentration when expressed in mg/mL?…

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Q: Some measurements of the initial rate of a certain reaction are given in the table below. [N₂] [H₂]…

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Q: Overall question: What is the molality of a 3.25 M aqueous solution of ethanol, C2H5OH? The density…

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Q: alcium citrate (Ca3(C6H507)2: MM = 498.46 g/mol), a common food preservative, has a Ksp of 1.12 x…

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Q: ANSWER ALL THE QUESTIONS BELOW What is the molality of a solid solution containing 1.576 g of iron…

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Q: The reaction. pyruvate + NADH+H. lactate + NAD* is catalyzed by the enzyme lacate dehydrogenase.…

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Q: Complete and balance the chemical reaction using method of half-reactions. Cu(s) + NO3-(aq)  ⇄…

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Q: 2. Ate Shawol and Concertina performed electrolysis to determine the identity of an unknown metal X.…

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Q: If 2.3 L of 1.8 mol/L potassium phosphide, K3P is mixed with 1.9 L of a 1.7 mol/L lead (II) nitrate,…

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Q: 3. Complete and balance the chemical reaction using method of half-reactions. Write your answer in…

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Q: Chemistry Aluminum has an atomic mass of 26.97 g/mol and a density of 2699 kg/m3. calculate a) mass…

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Q: Calculate the hydroxide ion concentration in a solution with hydronium ion concentration of 1.77…

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Q: Absorbance A-490 nm 20 300 cm¹ 400 500 670 15 25 λ/nm v/10³cm-¹ 20 Figure 1 UV-vis absorption…

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Q: The reaction: 2NO(g) + Cl₂(g)--> 2NOCI(g), exhibits the with rate law: Rate = K[NO] [Cl]. order with…

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Q: One mole of SO2 gas and 1.00 mole of O2 gas were confined at 1000 K in a 5.00 L flask. The gases…

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Q: 2. Phoebe was tasked to ensure that an enzyme responsible for keeping her species from extinction…

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Q: 14. Give the products of the combustion reaction of cyclohexane and balance the equation. + 0₂

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Q: 9. A city's water supply is fluoridated by adding NaF. The desired concentration of F is 1.6 ppm.…

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Q: Calculate the number of milliliter of ammonia whose density is 0.99 g/ml, 2.3% by weight NH3 which…

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Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.