Can you please help me

An electrons position cannot be known precisely only it's probability of being in a certain location can be known

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

Table sugar completely dissolved in water is an example of a?