Answers: 2
Chemistry, 22.06.2019 08:00
Why is the bond angle in a water molecule less than the bond angle of methane? a. the central oxygen atom in water has two lone pairs of electrons, whereas the central carbon atom in methane has no lone pairs. b. the central hydrogen atom in water has one lone pair of electrons, whereas the central carbon atom in methane has two lone pairs. c. the central oxygen atom in water has four lone pairs of electrons, whereas the central carbon atom in methane has only one lone pair. d. the central oxygen atom exerts more repulsive force on surrounding atoms than the central carbon atom in methane does. reset next
Answers: 2
Chemistry, 23.06.2019 05:30
For the reaction i2(g)+br2(g)βββ2ibr(g), kc=280 at 150 βc. suppose that 0.450 mol ibr in a 2.00-l flask is allowed to reach equilibrium at 150 βc. what is the equilibrium concentration of 2ibr, i2, br2
Answers: 1
Chemistry, 23.06.2019 11:00
Which of the following reactions represents an exothermic reaction? nh3(g) + 12.0 kcal Β½n2(g) + 3/2 h2(g) ch4 + 2o2 co2 + 2h2o + 212,800 cal c + 2s cs2, h = 27,550 cal c(graphite) c(diamond), h = 0.45 kcal 2h2o 2h2 + o2, h = +58 kcal
Answers: 1
What is the molar mass of ammonium fluoride?...
Mathematics, 27.03.2020 04:56
Mathematics, 27.03.2020 04:56
History, 27.03.2020 04:56
Mathematics, 27.03.2020 04:56
Mathematics, 27.03.2020 04:56
History, 27.03.2020 04:56
Mathematics, 27.03.2020 04:56
Mathematics, 27.03.2020 04:56
Chemistry, 27.03.2020 04:56
Mathematics, 27.03.2020 04:56