The table below shows the electronegativity values of various elements on the periodic table. which pair of atoms would form a covalent bond ?

Arollercoaster car at the top of a hill has potential energy kinetic energy chemical energy light energy

Predict whether the changes in enthalpy, entropy, and free energy will be positive or negative for the boiling of water, and explain your predictions. how does temperature affect the spontaneity of this process?

Calculate the energy required to ionize a hydrogen atom to an excited state where the electron is initially in the n = 5 energy level. report your answer in kilojoules