009 IU HLUVUES I Due Udles Lidiel a Hone WI Assignment Score: 1380/2500 Resources Hint Hint...
Assignment Score: 1283/2500 Resources aveusz Hint Check Answ < Question 14 of 25 > For each compound, determine the direction of bond polarity. Leave the box blank for a nonpolar bond. Br-Br H-CI F-CH Answer Bank about us Careers privacy policy terms of use contact us help
Assignment Score: 1879/2500 Resources by Give Up? Hint Check Answer Question 24 of 25 > Predict whether the following reactions will be exothermic or endothermic. Reaction A. N (9) + 3H2(g) — 2NH3(g) Reaction B. S(g) + O2(g) - SO,(g) Reaction C. 2H,0(g) — 2H,(9) +0,(9) Reaction D. 2F(8) - 5,() Bond H-H NEN O.O F-F H-N H-O AH°(kJ/mol) 432 942 494 155 386 459 S=0 522 Which reaction(s) are endothermic? Which reaction(s) are exothermic? OA OA OB oc OB...
Hint L Glve Up? Check Answer 1879/2500 Resources mment Score: tion 23 of 25 > Use the molar bond enthalpy data in the table to estimate the Average molar bond enthalpies (Hbond) value of AH for the equation kJ-mol kJ-mol Bond Bond cCl,(g)+2F,(g)-CF (g) +2 C1, (g) 464 CEN 890 О-н 390 N-H 142 O-O The bonding in the molecules is shown. 351 N-N 159 C-O 502 N N 418 O-O C-C + 945 N N 730 C-O C-C FF...
U n d Inthalpy baton The Table Assignment Score: 1915/2100 Resources (Give Up? Mint Check Answer < Question 33 of 36 > Attempt 2 - Use the molar bond enthalpy data in the table to estimate the value of A s for the equation Bond kJ. mol-' 464 NH,(g) + 20 (g) – HNO,(g) + H,0(g) The bonding in the molecules is shown. O -H 0-0 Bond CEN N-H kJ. mol-' 890 390 201 C-O N-O O.O со NEN NO...
please help Assignment Score: Glve Up? Hint 2572/5200 Resources Check Answer < Question 39 of 52> Consider this reaction involving an unknown element X. Br, +2 XF F2+2XBR When 7.500 g of XBr reacts, 4.324 g of Br, is produced. Calculate the molar mass of X, and then identify its element symbol. element symbol for X: g/mol molar mass of X: help terms of use contact us privacy policy about us careers
Assignment Score: 375/800 Resources O Hint Check Answer < Question 8 of 8 > In a chemical reaction, exactly 2 mol of substance A react to produce exactly 3 mol of substance B. 2A — 3B How many molecules of substance B are produced when 25.2 g of substance A reacts? The molar mass of substance A is 23.7 g/mol. Step 1: Convert the mass of A to moles. moles of A: Step 2: Convert the number of moles of...
Assignment Score: 1879/2500 Resources olve up? Hint Check Answer Question 21 of 25 Endothermic Exothermic Based on relative bond strengths, classify these reactions as endothermic (energy absorbed) or exothermic (energy released). Strongest bond A-B A-A B-B C-C B-C A-C. Weakest bond Answer Bank AB+ C AC+B A+ BC AB+C A, + B, -2AB B,+C, 2BC A, +, -2AC about us Careers privacy policy terms of use contact us help 10:03 AM 11/6/2019
explain please Assignment Score: 1335/2500 Resources [ Give Up? Hint Check Answer Question 16 of 25 > Draw the organic product of the reaction. Select Draw i ngs More Erase // COH +HO Write the IUPAC name of the product.
Give Up Hint Assignment Score: 233/2000 Resources Check Answer KY < Question 12 of 20 Nitrogen and hydrogen combine at a high temperature, in the presence of a catalyst, to produce ammonia 2 NH,(g) N,(g) +3 H2(g) - Assume 0.200 mol N, and 0.656 mol H, are present initially After complete reaction, how many moles of ammonia are produced? NH3 How many moles of H, remain? H2 How many moles of N, remain? hep centact us privacy policy terms of...
aqueous solution of silver nitrate and sodium phosphate are mixed together Assignment Score: 190/1500 Resources Hint Check Answer < Question 4 of 15 > If 7.98 mol of C,H,2 reacts with excess 02, how many moles of Co, will be produced by the following combusti C,H,2 +80, 61,0+ 5 CO2 moles of CO,