(Show work) A liquid has a DH°vap of 35.5 kJ/mol and a boiling point of 122°C at 1.00 atm. What is its vapor pressure at 104°C? * Clausius-Clapeyron Equation: ln(Pvap, T1/Pvap, T2) = (ΔHvap/R)*(1/T2 - 1/T1)

Which element in the third period would you expect to have the larger atomic radius, sodium (na) or sulfur (s)? a. sodium, because it has a higher effective nuclear charge attracting electrons in fewer energy levels. b. sodium, because it has fewer protons attracting electrons in the same energy levels. c. sulfur, because it has more protons attracting electrons in more energy levels. d. sulfur, because it has a higher effective nuclear charge attracting electrons in the same energy levels.

Of the groups of elements below, which are most likely to gain electrons to become anions? a. alkali metal b. boron group c. halogen d. transition metal

If 90.0 grams of ethane reacted with excess chlorine,how many grams of dicarbon hexachloride would form