This is my cookie >:( you cannot have it (Also the question of the cookie is it homogeneous or heterogeneous? DONT EAT IT [its mine])

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?

List the path of the respiratory system

Once similarity and one difference between a mixture of elements and a mixture of compounds