What volume would 32.0 g of NO2 gas occupy at 3.12 atm and 18.0˚C?

Iwill give extra points to who gets this right

One does not belong why? ice, gold ,wood ,diamond and table salt

Use this information to determine the number of calends electrons in the atoms. which of the following correctly compares the stability of the two atoms? a) both are unreactive b) both are highly reactive c) a is unreactive and d is reactive d) a is reactive and d is unreactive