When water evaporates at constant pressure, the sign of the change in enthalpy
a. is negative.
b. is positive.
c. depends on the temperature.
d. depends on the volume of the container.
e. does not exist; that is, the enthalpy change is zero.

A32 year old immigrant from a patriarchal country is giving birth. as she is delivering the baby, she tearfully confesses to her doctor that this is her 4th child and she simply cannot handle any more children. she tells the doctor that her husband refuses to use contraception or allow her to, and she begs her doctor to tie her tubes and not tell her husband. the doctor complies. was hipaa violated? why or why not?

Which formula can be used to calculate the molar mass of hydrogen peroxide

What is the formula of the ionic compound composed of calcium cations and chloride anions