Give the noble gas configuration for an iron ion with a +3 charge. [Ar] 4d5
[Ar] 3d5
[Ar] 4s2, 3d3
[Ar] 4s2, 3d9

Asolution contains 180 g of glucose (c6h12o6) and 162 g of water. what is the mole fraction of glucose?

In which situation can a mixture always be called a solution

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