_____1____N2 + 3H22_NH3 __2__KCIO3 -> 2_KCI + 3 02 Z NaCl + F2 -> 2NaF + H2+ 02 -> AgNO3 + MgC127 AgCl + AlBr3 + CH4 + C3H8 + H20 K2SO4> KBr + 02-7 C12 CO2 + H20 02> CO2 + Mg(NO3)2 Al2(SO4)3 H20
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- Sonya is working in the lab. She measures an initial 10 g of Silicon into a beaker weighing 27 grams. After Sonya performs her experiment she reweighs the beaker with the silicon and records a mass of 39.5 grams. Calculate the percent yield of silicon. e here to search Home End F5 F8 F9 F11 F12 Insert %23 & 3 4 7 8 W R Y S. J K {N Alt Alt PrtSc Ctrl + I| この * 00Mla pnc.com/women Mail - Whi x O Grades for x Course Ho X G oxide cont X G Exercise 4.x E 4 - Molecu x O Bananas a X 1.84 x 10- x + envellum.ecollege.com/course.html?courseld 16985674&OpenVellumHMAC=a0b841caaee7feddab1623a6c83a92c0#10001 Review | Constants I Periodic Table Percent composition refers to the mass percent of each element in a compound: mass of element Part A mass percent = x 100% mass of compound > For example, the percent composition of water, H2O. is 11.2% hydrogen and 88.8% oxygen. Therefore, a 100-g sample of water contains 11.2 g of hydrogen atoms and 88.8 g of oxygen atoms. A hydrocarbon is a compound that contains mostly carbon and hydrogen. Calculate the percent composition (by mass) of the following hydrocarbon: CH22 Enter the percentages of carbon and hydrogen numerically to four significant figures, separated by commas. The periodic table will be useful when doing this problem. You can access a periodic table by clicking the "Tools" link in the upper right…4) __ H2 + O2 0 H20 HCI O Pb(OH)2 + AIBR3 + Al2(SO4)3 5) H20 + PbCl2 6). K2SO4 O KBr + 7) CH4 + O2 0 CO2 + H2O 8) _ C3H8 + 02 O2 0 СО2 + H20 9). C3H18 + O2 CO2 + H20 10). FeCl3 + NaOH Fe(OH)3 + Nac
- ← X g 單 0 Priva Tern C My Account - MySam - Sam Hou X Content X Q mathway calculator - Search https://shsu.blackboard.com/ultra/organizations/_202946_1/cl/outline LI Lets start with the medical components. We need to determine how many units of the syringe connections can be made out of one metric ton of PEI, or around 2205 lbs of the plastic. X M Mathway | Basic Math Problem S X + 1 metric ton = 2205 lbs Starting material - PEI 1 metric ton ≈ 2205 lbs Calculation for number of units of each component: total weight of starting material PEI X Products Medical components Stopcock with Luer Connection, 1-way, male lock unit weight 2.72 g = 3/500 lbs 1 unit of medical component 1 weight of unit of component This calculation assumes all starting material is used during the production of the components. Medical components Products Stopcock with Luer Connection, 1-way, male lock unit weight 2.72 g 3/500 lbs Female Luer Lock 3/16" unit weight 0.63 g 7/5000 lbs Units = If necessary round to the…History stry Bookmarks X O8 https://app.101edu.co FEB 13 Tools Window 80 Aktiv Chemistry F3 Balance the following chemical equation (if necessary): Si₂H3(s) + O₂(g) → SiO₂(g) + H₂O(g) 1 $ + Reset Help SIO₂ O F4 X 04 03- 3 0₂ 03 ) + F5 Question 40 of 47 0²- 4 0 ↑ H₂O < 0- 5 05 □+ ALL F6 6 0 1 MacBook Air 2 2+ & 7 Si₂H3 07 (s) (1) (g) (aq) 4 F7 8 9 0 08 09 Do • x H₂O 4+ ♫ A * 0₂ FB Delete tv w O O DD F9OWLV2 | Assign x * MindTap - Cen X MindTap - Cen X G amu of ca - Go X b My Questions /ui/evo/index.html?elSBN=9781337790840&id3D299783426&snapshotld%=785765& + x GAGE MINDTAP 8: Chemical Composition Ę AA e. strontium chloride Answer + 31. Calculate the number of moles of the indicated substance present in each of the following samples. a. 21.4 mg of nitrogen dioxide b. 1.56 g of copper(II) nitrate c. 2.47 g of carbon disulfide d. 5.04 g of aluminum sulfate e. 2.99 g of lead(II) chloride f. 62.4 g of calcium carbonate 32. Calculate the number of moles of the indicated substance present in each of the following samples. a. 47.2 g of aluminum oxide 53 F insert pua F12 prt sc home F10 F11 F7 F4 F5
- 2. Quantitative analysis student Analytical analyzed an ore sample for its lead content and obtained a mean of 4.75% Pb for five measurements. If the certified true value is 4.50%, what is the (a) percent error? (b) percent accuracy?A common alkyne starting material is shown below. Predict the major product or missing reagent to complete each reaction. Ignore inorganic byproducts. + esc CI CI ! F1 143,176 @ F2 # 3 31, 80 F3 Select to Draw HCI (1 equiv) DEC 6 $ 4 Q F4 % 5 tv NA 9 F5 A 6 C F6 & 7 A B с D F7 * 8 F8 Cla (1 equiv) Cla (2 equiv) HCI (excess) NaCl (2 equiv) THF Done 9 F9 - . F10 0 F11 27 F12+ 1.03 2. Me₂S od c B A LOH
- Home Conte Meas Take G Three Pears Maste G 4.988 Ta X G Three G Three D Spani -> A dmacc.blackboard.com/webapps/assessment/take/launch.jsp?course_assessment_id%= 402371 1&course_id%3 94346 18&ne pps Work for students... O New Tab M Gmail O YouTube A Maps G7 Translate CHM * Question Completion Status: QUESTION 2 Three separate lab groups determined the density of a metal to be 12.5 g/mL, 13.1 g/mL and 14.8 g/mL. Use these values to calculate the average density among the measurements. O A. 13.5 g/mL O B. 30.5 g/mL ОС. 13.1 g/mL O D. 10.1 g/mL QUESTION 3 Three senarate lah grouns determined the density of a metal to be 12.5 g/mL, 13.1 g/mL and 14.8 g/mL. If the accepted de1Mg + 1H2SO4 1MgSO4 + ___H22. 3Fe + ___O2 1Fe3O43. 2Pb(NO3)2 2PbO + ___NO2 + 1O24. ___C2H6 + 7O2 4CO2 + 6H2O5. 2BaO2 ___BaO + 1O26. 1MnO2 + 4HCl1MnCl2 + ___H2O + 1Cl27. 2C3H6 + 9O2 ___CO2 + 6H2O8. 2KMnO4 + ___HCl2KCl + 2MnCl2 + 4H2O + 1Cl2Tab Window Help Gr ΞΑ ► Dc GTH CICC THE Or Ur 410/viewContent/1121090/View n #1 - 4/6 100% + s A WCIC Co. Li CIC ₁ 13. In a certain chemical reaction, 7.29 g of compound A is added to 5.70 g of compound B. Once the reaction is complete, 3.60 g of compound A and 1.17 g of compound B remain. What mass of products was produced ? 0 14a. Report this ordinary number in scientific notation: 123000 * K FC