After mg ribbon is reacted completely with air, the reason to add some water and heat is to convert the mg3n2 to mg(oh)2 convert the mg3n2 to mgo get the constant weight of the crucible, lid, and mgo make the mgo

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.