How did you get the solution to change from yellow to blue?

Why dose heating increase the speed at which a solution dissolved in water

Select the correct answer. wax is a nonpolar substance. in which type of substance is it most soluble?

Which of the following reactions is endothermic? h2(g) + ½ o2(g) h2o(g), h = -57.82 kcal ½n2(g) + o2(g) + 8.1 kcal no2(g) ½ n2(g) + 3/2 h2(g) nh3(g) + 11.0 kcal c(diamond) + o2(g) co2, h = -94.50 kcal