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- 20. After the successful lip tint sales of Sakura's self-produced cosmetic brand Cran by Molak, she decided to start on her eye glimmer palettes. Bismuth oxychloride is used in makeup to give a lustrous pearly effect and can be obtained through the reaction of bismuth chloride with water in the following hydrolysis reaction. a) Determine the grams of reagent in excess if 3.19 moles BiCl3 reacted with 0.980 moles water. b) What is the nercent yield BIOCI if 198 g bismuth oxychloride were obtained from the reaction? BİCI3 + H20 BIOCI + HCIAccording to the following reaction: 6HCI (aq) - Fe>O3 (3) → 3H;O (1) + 2F€C13 (aq) What would you multiply "moles of hydrochlorice acid" by to couvert to the units "moles of iron(II chloride" ? (number) (unit) moles HCI - moles FeCly (number) (unit) Submit Answer Retry Entire Group 8 more group attempts remainingThe mineral galena is composed of lead(II) sulfide and hasan average density of 7.46 g/cm³. (a) How many moles oflead(II) sulfide are in 1.00 ft³of galena? (b) How many leadatoms are in 1.00 dm³of galena?
- EX- An ore is analyzed for the manganese content by convening the manganese to Mn304 and weighing it. If a 1.52g sample yields Mn304 weighing 0.126 g, what would be the percent Mn₂O3 in the sample? The percent Mn?(2) 8. Write the balanced equation for the neutralization reaction between HI and Ba(OH)2 in aqueous solution. Include phases (physical states) in your equation. Use the arrow, not "=".The great French chemist Antoine Lavoisier discovered the law of conservation of mass in part by doing a famous experiment in 1775. In this experiment they found that mercury(II) oxide, when heated, decompose into liquid mercury and an invisible and previously unknown substance: oxygen gas. A. Write a balanced chemical equation, including physical state symbols, for the decomposition of solid mercury (II) oxide (HgO) into liquid mercury and gaseous dioxygen. B. Suppose 72 mL of dioxygen gas are produced by this reaction, at a temperature of 120°C and pressure of exactly 1 atm. Calculate the mass of mercury (II) oxide that must have reacted in grams. Round your answer to three significant digits.
- (3). Write a balanced chemical equation for each of the following reactions: a. Iron + oxygen gas ------- iron (III) oxide b. Sulfuric acid + aluminum hydroxide ---------- aluminum sulfate + water c. Silver nitrate + barium chloride -------- silver chloride + barium nitrate d. Copper (I) sulfide + oxygen gas ------- copper + sulfur dioxide2)The coefficients needed to balance the following equation is: ……Be2C +...…H2O → ……Be(OH)2 + …...CH4 Select one: A. 3, 9, 3, 1 B. 2, 8, 2, 2 C. 1, 4, 2, 1 D. 2, 4, 2, 2Answer question 2
- 2. Complete: ~ SH6:24 Question 4 of 16 LO 00 Psoralen, a compound found in giant hogweed, contains only C, H, and O. Combustion of 1.000 g of psoralen produces 2.600 g of CO₂ and 0.2903 g of H₂O. Determine the molar mass of the compound if it is between 175.0 and 250.0 g/mol. Provide an answer to four significant figures. 1 2 3 4 6 7 8 9 5 g/mol +/- Tap here or pull up for additional resources O 974 Submit XU x 10012)The coefficients needed to balance the following equation is: ……Be2C +...…H2O → ……Be(OH)2 + …...CH4 Select one: A. 2, 4, 2, 2 B. 3, 9, 3, 1 C. 1, 4, 2, 1 D. 2, 8, 2, 2