Which is a gas at room temperature? A) aluminum
B) nitrogen
C) potassium
D) sodium

Describe the particles of all three phases of matter in the root beer float. (how are the particles arranged and moving? )

The big bang nucleosynthesis theory states that elements were produced in the first few minutes of the big bang while elements have their origins in the interiors of stars, forming much later in the history of the universe.

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