Which of the following BEST describes a stable binary ionic compound? A.
two ions with the same charges and a net charge of negative one (-1)

B.
two ions with opposite charges and a net charge of positive one (+1)

C.
two ions with the same charges and a net charge of zero (0)

D.
two ions with opposite charges and a net charge of zero (0)

Agas mixture with a total pressure of 745 mmhg contains each of the following gases at the indicated partial pressures: co2, 245 mmhg ; ar, 119 mmhg ; and o2, 163 mmhg . the mixture also contains helium gas. part a what is the partial pressure of the helium gas? phe p h e = nothing mmhg request answer part b what mass of helium gas is present in a 10.2-l sample of this mixture at 283 k ? m m = nothing g request answer

Balance this equation co2(g) + h2o (g) show that the balanced equation obeys the law if conversation of mass

650.j is the same amount of energy as? 2720cal1550cal650.cal2.72cal