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es Tab Window Help oard | Universi X Bb Exam 4 review - General Chem X Periodic Table of Elements - P X e/content/file?cmd3Dview&content_id%=_3710564_1&course_id%3_72361_1 30. When heated, azomethane decomposes into nitrogen gas and ethane gas. CH;N=NCH3(g)→ N2(g) + C¿H(g) -> Bond Energy (kJ/mol) 413 305 Bond Bond Bond Energy (kJ/mol) 163 С-Н C-N N-N N=N 418 С-С 346 N=N 945 Using average bond energies, calculate the enthalpy of reaction.

||| Initial Knowledge Check Balance the chemical equation below using the smallest possible whole number stoichiometric coefficients. Br₂ (1) + 1₂ (s) IBr; (g) Question 4 X

13) NaOH, Br excess H,N NH,

3) If 1.2 mol of phosphorus (P) interacts with 1.2 mol of chlorine according to the following equation: 2P +3C2 → 2 PC3 The limiting substance of the reaction: a) Cl2 b) P c) PCI3 d) Not one. Activate Windows Go to Settings to activate Windows AAI€ tho satuel ieldof Cis tho sooult of tha saaation af O , 10-3 malaf C.co 196% 2 REnglish (United States) w ENG 7:22 PM INTL 10/5/2021 36°C O Type here to search Chp HEWLETT PA CKARD end OVEN CRE home pg up insert f10 f11 f12 Scroll delete f5 f6 f7 f8 f9 f2 f3 f4 num ik backspace

Request They Both Die at t... ula Enchanted Wa... Question 6 of 20 Balance the following chemical equation (if necessary): Sio,(s) + C(s) → Si(s) + CO(g) 04- 2. 3+ O4+ 1 6. 7 8. 9. Os 6. O9 (s) (1) (g) (aq) C Si Reset • x HO Delete MacBook Air 000 F3 F4 F5 @ %23 2$ % 2 3 5 6. 8 9. W E 5 4- 3. 2. 14

Question 15 of 37 Submit Write a balanced chemical equation based on the following description: solid C,HO i burned with oxygen gas to produce gaseous carbon dioxide and water vapor 10 14- 3- 2- 2+ 3+ 4+ 1 3 4 6. 7 8 9. O3 (s) (1) (g) (aq) + W Са H Ох Cb C Cr Reset • x H,O Delete +

[Review Topics] [References] Use the References to access important values if needed for this question. When the following molecular equation is balanced using the smallest possible integer coefficients, the values of these coefficients are: hydrobromic acid (aq) hydrogen (g)+ bromine (1) Submit Answer Retry Entire Group 9 more group attempts remaining Previous Show Hint Email Instructor Save and E 10:40 12/12/2

b For the following reaction, give the balanced equation for the reaction. PC13 (1) + 3H₂O(1)→ H3PO3(aq) + 3HCl(g) mol PC13 mol H₂O mol H3PO3 mol HCI 3 Submit Submit Answer Retry Entire Group Show Hint 9 more group attempts remaining Cengage Learning | Cengage Technical Support

NEED HELP PLEASE GRAVIMETRIC ANALYSIS (Exercises) Instructions: Answer each of the problems below by showing your solutions neatly and logically. You may use periodic table for atomic masses of elements. Copy and answer each problem and please box your final answers. 7. Orthophosphate (PO43-) is determined by weighing as ammonium phosphomolybdate, (NH4)PO4 • 12Mo03. Calculate the percent P in the sample and the percent P205 if 1.1762 g precipitate (ppt) were obtained from a 0.3711-g sample. NOTE: KINDLY WRITE THE SOLUTIONS ON A SEPARATE SHEET OF PAPER

HOMEWORK Balancing Equations 47. Balance the following equations: (a) CaC2(s) + H,O(l) Ca(OH)2(s) + C,H2(g) (b) (NH4)2Cr2O-(s) Cr2O3(s) + N2(g) + H2O(g) (c) CH;NH2(g) + O2(g) CO2(g) + N2(g) + H2O(g) 48. Balance the following equations: (a) CH12O6 (s) + O2(g)→ CO, (g) + H2O (1) (b) XeF4(g) + H2O (1) Xe (g) + O2(g) + HF (g) (c) NaCl (s) + H;O(g) + SO2(g) + O2 (g)- NazSO4 (s) + HCI (g) 15

X Bb Pearson's MyLab & Mastering - 2X 3.8 Formula Mass and the Mole b Calculate the number df moles in x MasteringChemistry: Chapter 3 X X session.masteringchemistry.com/myct/itemView?assignmentProblemID=128518634&0ffset=next W Chapter 3 Exercise 3.62 - Enhanced - with Feedback 14 of 20 Review | Constants Periodic Table You may want to reference (Pages 107 - 110) Section 3.8 while completing this problem. Calculate the mass of each sample. Part A 19.6 mol ΗΝΟ 3 Express your answer with the appropriate units. ? HA η (HNO. ) - 1431 g Previous Answers Request Answer Submit XIncorrect; Try Again; 4 attempts remaining 12:08 PM е Type here to search 9/29/2019

Chrome File Edit View History Bookmarks Profiles Tab Window Help ») Thu Oct 14 7:04 PM B Homepage - CHM110-201 Gen X B CHEM101 HW #4 & 5 - CHM110 X 101 Chem101 app.101edu.co K Question 17 of 28 Submit How many moles of H,SO, are required to completely react with 7.20 | mol of Al 4 according to the balanced chemical reaction: 2 Al(s) + 3 H,SO,(aq) → Al,(SO,),(aq) + 3 H,(g) STARTING AMOUNT 98.08 342.14 2.02 7.20 26.98 10.8 3 21.6 3.60 1 2.40 6.022 х 1023 2 g Al,(SO,), g Al mol H2 g H,SO, g H2 mol H,SO, mol Al mol Al,(SO,), + 90 OCT 14 étv w 280

ice 10-001-2022 Wtr y courses / SCN-1270-001-10716-2022 Wtr / Chemistry - Unit 2 Chemical Reactions Chapter 3 Pages 84-187 / Balance Chemical Equations - 2-2 Balance the equation by typing the coefficients into the boxes provided. Include 1 in your answer if necessary. Word equation: Solid nickel is combined with hydrochloric acid to produce nickel(II) chloride and hydrogen gas. Nis) HCl(ag) - NiCl2(aq) + H2(g) Fi. Check Next page RX and Solubility – 2-1 Jump to. Chemistry Quiz 3 - 2-3 - O Smoke Signal.pdf Untitled document.pdf O imm5444e (4).pdf 一 F11 Prisc Impr. Ecr. Insert Ins F2 F3 F4 F5 F6 F7 F8 F9 F10 F12 %23 & 3 4 7 3 O 1/4 - 112 ニ 3 @ 2 R Y O %3D F H K 2 C B 1-3 3D * 00 G

education.wiley.com/was/ui/v2/assessment-player/index.html?launchld=da7a7a5f-ce58-4af3 rk uestion 3 of 12 u are viewing Attempt 1/Continue Work Your answer is partially correct. Given the equation H2SO4 + NAOH → Na2SO4 + H2O (a) How many moles of NaOH will react with 24 moles of H,SO4? 1 7. (b) How many moles of Na,SO4 will be produced when 14 moles of NaOH react? eTextbook and Media OCT 22

1210)react with O2G) to i X y! When H2g) reacts with 02 Evo/index.html?deploymentld%3D55750885385539582248933448&EISBN=9781305657571... Q Search this course References Use the References to access important values if needed for this question. When N2(g) react with O2(g) to form N,0(g) according to the following equation, energy is absorbed from the surroundings. 2N2(g) + O2(g)–→2N½O(g) Is this reaction endothermic or exothermic? endothermic v What is the sign of AH for the reaction? positive Would the energy of the surroundings increase or decrease as a result of this process? increase An error has been detected in your answer. Check for typos, miscalculations etc. before submitting your answer. Submit Answer 1. Enthalpy and Representing Energy Change: This is group attempt 2 of 5 Regenerate Group Autosaved at 5:13 PM Next Back 5:15 PM C ENG 3/18/2021 hp ins prt sc delete end home

A www-awn.aleks.com Significant Figures Counter Chapter 5. The Nervous System-Neurolo.. https://learn-us-east-1-prod-fleet01-xyth... ALEKS Sabina Lamgadhey - Learn O CHEMICAL REACTIONS Solving for a reactant using a chemical equation Ammonia (NH,) chemically reacts with oxygen gas (0,) to produce nitric oxide (NO) and water (H,0). What mass of nitric oxide is produced by the reaction of 2.65 g of oxygen gas? Be sure your answer has the correct number of significant digits. x10 Explanation Check 2020 McGraw-Hill Education. All Rights Re 10 MacBook Air II

Font Paragraph Styles • 10.I·11 · 12. 14.I 15 · I· 16 . I 17 Rank the basic properties of the following compounds by explaining the factors that influence them:Me3N, Me2NH, MENH2, NH3 a. NH2OH, NH2NH2 b. MesN, Me2NH, MeNH2, NH3 c. MENH2, ETNH2, i-PRMH2, i-BUNH2 d. Me2NH, ET2NH, i-PR2NH, i-BU2NH

X Macmilla X ck Course M X Submit Answer Sections X /index.html?deploymentid=5735112480241329813180832311&elSBN=9781305862883&id=1707786042&snapsh olchlometry of Reactions: Gram to Gram: This is group attempt 1 of 10 References HOMEWO X Use the References to access Important values if needed for this question. According to the following reaction, how many grams of potassium phosphate will be formed upon the complete reaction of 23.3 grams of phosphoric acid with excess potassium hydroxide ? potassium hydroxide(aq) + phosphoric acid(aq) →→→ potassium phosphate(aq) + water(1) grams potassium phosphate MindTap X Autosaved at 6:23 PM MacBook Air Gatoms to

Add-ons Help Last edit was 15 minutes ago BIUA Arial 11 +1 1. Unit 10 Stoichiometry Introduction to Stoichiometry Mole-Mole Conversions Individual Learning Goals: 10.1 Use balanced chemical equations to relate amounts of reactants and products with mole ratios 1. Use the following equation to solve the problem below: I. 3 SiO, + 4 Al →3 Si + 2 Al,O, a. If 6.0 moles of SiO, react, how many moles of 1. Al react? iI. Si are produced? Il. Al,0, are produced?

du.co Question 10 of 22 Balance the following chemical equation (if necessary): CH(g) + O,(g) → H,O(g) + CO,(g) 04- 03. 02. O+ O2+ D3+ 04+ 1 4 7 8 9. O3 04 Os + (s) (1) (g) (aq) CO CH.0 H,O Reset • x H,O Delete MacBook Air 80 DII F3 F4 F7 F8 F9 @ $ & 2 4 5 6 8 9 W E R Y S D F G H J K C V B M * CO *3

Copy) D O ange Tools Add-ons Help Last edit was 6 minutes ago 田 Background D Present Layout- Theme 8 Sha Transition I | 1 | 2 | 3 I 4 | 5. |r16 | 7 | 8. 9. IC Balancing Chemical Equations STEP 4: Add in _Al, +_C_N,→ _Al+ _(CN), the coefficients STEP 1: Identify THE TYPES of atoms you have on each side. STEP 2: List HOW MANY of each atom you have on cach side. STEP 3: List HOW MANY of each atom you have on cach side AFTER balancing the equation. r notes EXTD O Sign out

x6 Quiiz Predicting Products Notex C Sign in or Sign Up Chegg com x cfbisd. instructure.com/courses/85698/quizzes/390059/take O CFB A Pearson Realize 6 Dasnboard Student Resources E doogle Docs-creat B google classroom O Nearpod Welcome O Meeting is in progre O Reading list NH4CI + Ca(OH)2 → + Ovestien 2 O us vI4:19 @ #3 % backs- 4. 5. 6. W e

[References] Use the References to access important values if needed for this question. When the following molecular equation is balanced using the smallest possible integer coefficients, the values of these coefficients are: hydrogen peroxide (H2O2) (aq) water (1) + oxygen (g Submit Answer Try Another Version 4 item attempts remaining O OWLV2 | Online tea...

Balance the chemical equation below using the smallest possible whole number stoichiometric coefficients. esc cab ft CH,(g) +O,(g) → CO,(g) +H,O(g) aps lock Check 30 F1 ! 1 < O A 2 F2 N ✔ tion W S #3 80 F3 E $ 4 D command F4 R X C % 5 F 0-0 T MacBook Air V X < 60 00 F6 Y 04 3 & 7 Save For Later © 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Priva aa F7 H U * 00 8 B N DII FB J ( 1 9 DD K M ) 0 0 4 F10 L com

Drag and drop the appropriate choices to fill in the following chemical reaction: where you start the reaction with 2 moles of C2H60 and 3 moles of 02. The Limiting Reactant is O2 Reaction Table C2H60 3 2 H20 CO2 (g) + (g) (g) + 02 (g) Initial Change Final 0123 || 4 +1 -1 +2 -2 | +3 -3 |+4-4 +5 -5

HSC 258 Major Projec X Mind Tap - Cengage Lea X d%3D55750828934189288909969212&elSBN=9781305657571&snapshotld%3D219989 The illustration to the left represents a mixture of iodine ( purple ) and fluorine ( green ) molecules. If the molecules in the above illustration react to form IF3 according to the equation I +3 F2 2 IF3 , the limiting reagent is the number of IF, molecules formed is and the number of atoms/molecules in excess is Submit Answer

2 279/quizzes/406052/take Page of 6 11 a) Molecular Equation: Fe(OH)3 + H2SO4 b) lonic Equation: c) Net lonic Equation: No new data to save. Last checked at 10:05am Submit Quiz 一 元

Given the following reaction, identify only those chemical species that are undergoing a chemical change: Pb(CIO4)2 + 2 NaBr → PbBr2 + 2 NaCIO4 O Pb and CIO,- O Pb2* and Br1- O Not enough information Na* and CIO,-

7-1 / Fall 2021 / SHS Chemistry (CHEM) Due date 3/2/22 2:00 PM This module is past due, and su 3. kac stoich 1 10 pts possible The elements lithium and oxygen react ex- plosively to from lithium oxide (Li2O) accord- ing to the unbalanced equation below. Li + O2 →, Li2O. How much lithium oxide will form if 2.13 mol of lithium react? Answer in units of mol. Answer in units of mol

9. Homework • Unanswered HCl(ag) +_N22CO3(aq) → Identify the spectator ions. NaCl(ag) + _CO2(8) + _H2O(1) Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. Nat andH+ a b Nat and CO Natand Cl- d co?-and Cl-

NTS GAMES VIDEOS VA SOL PROG Balancing Act! Balance this equation! (Equation number 1 of 10) C6H6OS + 02 → 12CO2 + H2O + 2SO3 Check my answer!

After balancing the following chemical equation, what is the balancing coefficients of  KClO3 and O2 respectivey ?   KClO3                    KCl  +  O2   The balancing  coefficient of  KClO3 is  …………….. The balancing  coefficients of  O2 is ………………..   16