As a general pattern, electronegativity is inversely related to A) atomic size B) polarity of the atom. C) the number of neutrons in the nucleus. D) ionization energy. E) two of these.

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

How many grams of oxygen gas are contained in a 15 l sample at 1.02 atm and 28°c? show your work.

How many moles are in 43.9 l of oxygen