A 2.490 mol quantity of NOCl was initially placed in a 1.850 L reaction chamber at 400°C. After equilibrium was established, it was found that 27.80 percent of the NOCl has dissociated:

2NOCl(g) ⇆ 2NO(g) + Cl2(g)

Calculate the equilibrium constant Kc for the reaction.

Which statement best describes the oxidation numbers of the atoms found in magnesium chloride? a. magnesium has a 2- oxidation number and chlorine has a 1+ oxidation number. b. magnesium has a 2- oxidation number and chlorine has a 2+ oxidation number. c. magnesium has a 2+ oxidation number and chlorine has a 1- oxidation number. d. magnesium has a 1+ oxidation number and chlorine has a 1- oxidation number.

Achef makes salad dressing by mixing oil, vinegar, and spices, as shown. which type of matter is the salad dressing?

Which element would mostly likely have an electron affinity measuring closest to zero