How does a molecule form? O A. Electrons are delocalized among many atoms.
O B. Electrons are transferred between two atoms.
O C. Electrons are lost from atoms.
O D. Electrons are shared between two atoms.

Look at the potential energy diagram for a chemical reaction. which statement correctly describes the energy changes that occur in the forward reaction?

A0.750 kg aluminum pan is removed from the stove and plunged into a sink filled with 10.0 kg of water at 293 k. the water temperature quickly rises to 297 k. what was the initial temperature of the aluminum pan? the specific heat of aluminum is ca = 900 j/(kgk) and water is cw = 4190 j/(kgk)

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