The boiling points of some group 7a hydrides are tabulated below.
gas b. p. (°c)
nh3 –33
ph3 –88
ash3 –62
which intermolecular force or bond is responsible for the high boiling point of nh3 relative to ph3 and ash3? a) dipole/induced dipole force b) covalent bonding c) dipole-dipole force d) induced dipole/induced dipole force e) hydrogen bonding

Select all that apply. a beta particle: is electromagnetic energy is an electron has zero charge is emitted from the nucleus has a +2 charge has a -1 charge

What is the mass defect of a mole of nuclei with 1.8 x 10^15 j/mol binding energy?

Imagine that a new planet is discovered with two moons of equal mass: moon a and moon b. the mass of the new planet is greater than the combined mass of its moons. moon a is farther away from the new planet than moon b. what is the planet's gravitational pull on moon a compared to the planet's gravitational pull on moon b? the planet's gravity repels moon a with a greater force than it repels moon b, which is why moon a is farther away. the gravitational pull on moon b is greater than on moon a because moon b is closer to the new planet than moon a. the gravitational pull on moon b is greater than on moon a because moon b is farther away from the new planet than moon a. the gravitational pull on moon a is the same as the gravitational pull on moon b because distance does not affect the planet's gravity.