Question

Question Completion Status: Courses ory QUESTION 12 Which is not balanced? C3H8 +502 + 3C02 + 4H20 P4 + 6Cl2 + 4PC13 2A + 302 + 2A1203 OK2CO3 + 2 HNO3 2 KNO3 + H2O + CO2 2 AgNO3 + Fe + 2 Ag + Fe(NO3)2 QUESTION 13 What mass of BsHg is needed to react completely with 235 gram O2 according to this equation? 2 B5H9 + 1202 -> 5 B203 + 9H20 77.39 18.1 g 57.29 6.08 g 44.0 g 14.5 g 30.6 g 73.6 g

Answer 1

» Callo+son - 3002 + u no total de 30 org loo atoma Reaction is balanced Pu T6 Cl2 → 4 PC13 - Balanced QAI + 302 + 2Al2O3 2 Al - und Not balanced Equ 3 K2CO3 +2HNO3 + 2 KNO3 + Be +O2 Balanced Equation Balanced Equation 2 Ag Noz + fe 2 Ag+ fe NO3)2 opron ☺ is correct 1 so 5B2O3 + gho 2 B5 Mg + 1202 Li ITTTTTTTTTTTTTTT 235 g 02 bқ И ? ? Molar mass O2 = 31.998 g/mol Molar mass BS Hg = 63.12 glmol Mol of 02 in 2359 2 235 1 2 7:3442 mole . 1 31.998 ² to 3 492 mole since 12 molo2 required a mole BS Hg so Imol O2 = 2 mol issty So 7.3442 moloz z 2 x 7.3442 12 mol B50g 21.224 mol Borg

So ta, obs 1, 2 ча; е) 1-224 mo) 2 1 224y G3-12 . 11. 23 00 ru . 1. So 235 gol required 77.2588 gram BsHg