What happens to water as it boils?
a. the intermolecular forces strengthen and lock the molecules in place. b. the average kinetic energy of the molecules decreases as energy is released. c. the average kinetic energy of the molecules increases as energy is absorbed. d. the energy that is absorbed overcomes the intermolecular forces that hold the molecules together.

Neils bohr believed that electrons orbited the nucleus in different energy levels, based on strong support from

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.

Astudent completes a titration by adding 12.0 milliliters of naoh(aq) of unknown concentration to 16.0 milliliters of 0.15 m hcl(aq). what is the molar concentration of the naoh(aq)? 1)5.0 m 2)0.20 m 3)0.11 m 4)1.1 m