Calculate, use hess’s law to determine /\H for the reaction NO(g) + O(g)—> NO2(g) /\H=? given the following reactions. show your work O2(g)—>2O(g)/\H= + 495 kJ
2O3(g)—>3O2(g)/\H = -427 kJ
NO(g) + O3(g)—> NO2(g) + O2(g) /\H= -199 kJ

The climate of the continental united states is generally 1. tropical 2. temperate 3. arctic 4. highland

One way that radioactive waste is treated is by burying it in repositories. the repositories are found only in states with very low populations. true or false? a. trueb. false(also i meant to put high school but it put down middle school instead)

The footprints of a dinosaur and the burrow of an ancient shrimp are examples of which kind of fossils