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An element X reacts with F2(g) to form the molecular product
shown here. (a) Write a balanced equation for this reaction
(do not worry about the phases for X and the product).
(b) Do you think that X is a metal or nonmetal?
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- What is the pH of (3.21x10^-1) M C5H5NHBR? Enter your answer in scientific notation with 3 sig figs. Do not include any units in your answer. Do not round any intermediate calculations. Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: х10 AnswerComplete the following reaction ia' T-Fe/HCI / AICI Br Br COOH NO,5) King Krator the Merciless has called on Pogo, a humble goldsmith, to make a crown for theKing. He gives Pogo exactly 14 oz of pure gold to fashion the crown and tells him that if hecheats the King, he will pay with his life ! Pogo leaves with the gold; he and his apprenticesspend two weeks in making the crown; finally he returns to the court. When Pogo returns withthe crown, King Krator finds that the crown weighs 397.25 grams, and has a volume of20.58cm3. King Krator asks the court wizard for the density of gold, and Wizard tells the Kingthat gold has a density of 19.3 times that of an equal volume of spring rain. Krator demands aslate, makes a few calculations, then sternly lifts his head to stare at Pogo. Does Pogo's headroll ?
- Curved arrows are used to illustrate the flow of electrons. Using the provided starting and product structures, draw the curved electron-pushing arrows for the following reaction or mechanistic steps. Be sure to account for all bond-breaking and bond-making steps. Drawing Arrows THF (solvent) G1597 59 S ||| 2 O CHEMICAL REACTIONS Calculating ion molarity using solute mass A chemist prepares a solution of magnesium bromide (MgBr₂) by measuring out 2.1 g of MgBr, into a 300. mL volumetric flask and filling to the mark with distilled water. V Calculate the molarity of Br anions in the chemist's solution. Be sure your answer is rounded to the correct number of significant digits. Microsoft O W Microsoft Microsoft 6.52.210... esc mol L Explanation 18 ! 1 Check 9,206 2 # 3 103 NOV 6 X $ 4 O 67 5⁰ % 5 stv 6 Y 2 & 7 © 2022 McGraw Hill LLC. All Rights Reserved. U * CO 66 8 A 9 I 1 Terms of Use | Privacy Center | Accessibility W 0 0 P { [ do F }62. When corn is allowed to ferment, the fructose in the corn is converted to ethyl alcohol according to the following reaction C,H12O6(aq) →2C,H;OH(1) + 2CO2(g) (a) What volume of ethyl alcohol (d = 0.789 g/mL) is produced from one pound of fructose? (b) Gasohol can be a mixture of 10 mL ethyl alcohol and 90 mL of gasoline. How many grams of fructose are required to produce the ethyl alcohol in one gallon of gasohol? 7
- 2 When corn is allowed to ferment, the fructose in the corn is converted to ethyl alcohol according to the following reaction C,H12O6(aq) –→ 2C,H;OH(1) + 2CO2(g) (a) What volume of ethyl alcohol (d = 0.789 g/mL) is produced from one pound of fructose? (b) Gasohol can be a mixture of 10 mL ethyl alcohol and 90 mL of gasoline. How many grams of fructose are required to produce the ethyl alcohol in one gallon of gasohol? %3D16 The odor of fish is due primarily to amines, especially methylamine (CH3NH₂). Fish is often served with a wedge of lemon, which contains citric acid. The methylamine reacts with the citric acid to form an odorless product, methylammonium citrate, thereby making less-than- fresh fish more appetizing. K₁ for CH3NH₂ = 4.407 × 10-4 CH₂NH₂ (aq) + H₂O(1)⇒ CH₂NH3(aq) + OH(aq) A. B. What is the pH of a solution that is 0.7625 M in methylamine at 25.0 °C? pH = Please provider your answer below. t Check answer → A (0) Check answer What is the pH of a solution that is 7.007×104 M in methylamine? pH = Please provider your answer below. (02) If cobalt(II) sulfate is heated too strongly, the following reaction will occur COSO4(s) → CoO(s) + SO3(g) co If you are heating a sample of CoSO4 6H2O and this reaction occurs along with M dehydration, what will happen to the experimental percent water? Explain your answer. to clure 88.01
- Pennies that are currently being minted are composed of zinc coated with copper. A student determines the mass of a penny to be 2.482 g and then makes several scratches in the copper coating (to expose the underlying zinc). The student puts the scratched penny in hydrochloric acid, where the following reaction occurs between the zinc and the HCl (the copper remains undissolved): Zn(s) + 2 HCl(aq) --------> H2(g) + ZnCl2(aq)The student collects the hydrogen produced over water at 25°C. The collected gas occupies a volume of 0.899 L at a total pressure of 791 mmHg. Calculate the percent zinc (by mass) in the penny. (Assume that all the Zn in the penny dissolves.)I||| O O CHEMICAL REACTIONS Calculating ion molarity using solute mass A chemist prepares a solution of magnesium chloride (MgCl₂) by measuring out 64. mg of MgCl₂ into a 100. mL volumetric flask and filling to the mark with distilled water, Calculate the molarity of CI anions in the chemist's solution. Be sure your answer is rounded to the correct number of significant digits. Microsoft O W Microsoft Microsoft 6.52.210... esc mol L Explanation 1 C Check 0,207 2 W # 3 103 E On NOV 6 X $ 4 R 15 % tv T 2 MacBook Pro 6 Y & 7 Ⓒ2022 McGraw Hill LLC. All Rights Reserved. * 0 U 66 C 8 A Terms of Use | Privacy Center | Accessibility W 0 9 T 0 O P DI { 5 dla M 2 lab h Englis }What are the coefficients necessary to balance nahco3
