For a reaction, AH = 198 kJ. For which value of TA Sis the reaction spontaneous?

Your roll: experienced electron speech is adressed to: a new "freshman class" of electrons job: write a speech task: you are to pretend that you are giving a speech to a new group of electrons. be sure to mention their placement in an atom, their charge, and their role in chemical bonding (ionic and covalent) be specific!

The drawing represents the movement of particles in a substance. what changes of state can this substance undergo

If an area has high air pressure and low humidity, what type of weather will it most likely have? plz !