Write the balanced equation and calculate the enthalpy change for the
reaction, showing lead (II) nitrate decomposing to lead (II) oxide, nitrogen
dioxide, and oxygen. Classify the reaction as endothermic or exothermic.

Which of the following is not a true statement about dwarf planets? a the kuiper belt contains comets, asteroids, and dwarf planets. b ceres is a dwarf planet located in the kuiper belt. c the largest known dwarf planet in the solar system is named eris.

Which of these is a density dependent factor? a. epidemic b. earthquake c. drought d. hurricane

What two categories of toxins were present in the air at dish,texas as a result of the gas pipelines that pass through the area