Mrs. Wong find a mistake as she was grading Lola's paper. Each step should represent an equivalent expression. Which step shows the mistake that Mrs. Wong found?

When the water vapor cools it condenses select a number that represents his process on the

Consider the following reactions. (note: (s) = solid, (l) = liquid, and (g) = gas.) mg(s) + ½o2(g) → mgo(s) + 146 kcal/mole h2(g) + ½o2(g) → h2o(g), δh = -57.82 kcal/mole what type of reaction is represented by the previous two examples?

12. calculate the hydroxide ion concentration of a solution with ph = 3.25. show all calculations leading to an answer