Consider the Gibbs-Helmholtz equation, G = H - TS. For each dissolving process, substitute the signs of G and H into the equation and predict the sign for the entropy (S). Does the sign for entropy change seem to make sense? Explain.

Which statement is usually true about the relationship between activation energy and reaction rates? low activation energy barriers result in low rates. high activation energy barriers result in low rates. low activation energy barriers result in no reaction. high activation energy barriers result in no reaction.

Draw metallic bonding if two copper

Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.