X is the gas and Y is the liquid. Intermolecular distances are farther apart in gases than in liquids.
L'eau se réchauffe elle s'intesifie et commnce a bouilloner ensuite L'eau s'évapore
Answer:
Its Silver!
Explanation:
I took a quiz, and i got it right!
answer: dispersed from the liquid so cold air can take its place
Empirical formula is the simplest ratio of components making up the compound. the molecular formula is the actual ratio of components making up the compound.
the empirical formula is CH₂. We can find the mass of CH₂ one empirical unit and have to then find the number of empirical units in the molecular formula.
Mass of one empirical unit - CH₂ - 12 g/mol x 1 + 1 g/mol x 2 = 12 = 14 g
Molar mass of the compound is - 252 .5 g/mol
number of empirical units = molar mass / mass of empirical unit
= 
= 18 units
Therefore molecular formula is - 18 times the empirical formula
molecular formula - CH₂ x 18 = C₁₈H₃₆
molecular formula is C₁₈H₃₆