What is the mass of 4.5 x10 23 molecules of so2?

Define dew point. i am writing this part to be able to ask the question

Aglow stick contains a glass vial with chemicals. when the glow stick is bent, the vial breaks and the chemicals react to produce a glow. a science student observes that a glow stick kept in the freezer glows for a longer duration than a glow stick kept at room temperature. what conclusion can be drawn based on the observation? be sure to note the outcome and test variables in the conclusion.

What is a possible quantum number set for an electron in the 3s orbital of a magnesium atom