AlCl3(s)+Ca3N2(s)→AlN(s)+CaCl2(s)

The formation of a solid, also known as a is an indication of a chemical change. precipitate particulate particle powder

Earth's axis of rotation is tilted at an angle of 23.5 degrees. what is one change you would see on earth if its axis was not tilted?

Acompound has a molar mass of 92.02 grams/mole, and its percent composition is 30.4% nitrogen (n) and 69.6% oxygen (o). what is its molecular formula? a. n2o4 b. no2 c. n2o d. n4o2