Which reaction below represents the second ionization of sr? a. sr(g) → sr⁺(g) + e⁻ b. sr2⁺(g) + e⁻ → sr⁺(g) c. sr⁺(g) + e⁻ → sr(g) d. sr⁻(g) + e⁻ → sr2⁻(g) e. sr⁺(g) → sr2⁺(g) + e⁻?

Energy is released during which phase changes? check all that apply. boiling condensing depositing freezing melting subliming

Chemical energy is a form of a. kinetic energy only. b. both potential and kinetic energy. c. neither potential nor kinetic energy. d. potential energy only. reset

If we compare and contrast electromagnetic waves with sound waves, all but one statement is true. that is a) sound waves require a medium to travel while electromagnetic waves do not. b) electromagnetic waves can travel through the vacuum of space while sound waves cannot. c) electromagnetic waves must have a medium in which to travel, but sound waves can travel anywhere. eliminate d) sound waves must bounce off of matter in order to travel while electromagnetic waves do not require matter to be present.