The reason h2s exists as a gas while h2o exists as a liquid at room temperature is because:
h2s has more electrons than h2o, causing a larger dispersion.
h2o has a lower boiling point than h2s.
h2s possesses hydrogen bonds, while h2o only possesses london dispersion forces.
h2o possesses hydrogen bonding, while h2s does not.

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space

The activation energy for the reaction no2(g)+co2(g)⟶no(g)+co(g) is ea = 300 kj/mol and the change in enthalpy for the reaction is δh = -100 kj/mol . what is the activation energy for the reverse reaction?

Which of these is an example of pseudoscience? a) predicting the time of sunrise based on data on position of earth b) predicting the date of the moon phases based on data on position of earth c) predicting eclipses based on the position of the sun and the moon d) predicting future events in a person's life based on the position of the moon