What mass of water vapor condenses if 435 kJ of heat are released in
the process?

Read the given expression. x = number of protons − number of core electrons which of the following explains the identity of x and its trends across a period? x is the effective nuclear charge, and it remains constant across a period. x is the screening constant, and it remains constant across a period. x is the effective nuclear charge, and it increases across a period. x is the screening constant, and it increases across a period.

How would the number of moles (n) of o2 change if the atmospheric pressure doubled but all other variables stayed the same

Which element would mostly likely have an electron affinity measuring closest to zero