The phase change in which a substance changes from a liquid to a solid is a. freezing. b. melting. c. sublimation. d. condensation.

The climate of the continental united states is generally 1. tropical 2. temperate 3. arctic 4. highland

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

The formation of a solid, also known as a is an indication of a chemical change. precipitate particulate particle powder