Answer:
Peer Review
Explanation:
Because the scientists are working together.
Answer:
d. ΔH° > 0, process is endothermic.
Explanation:
Cold packs contain ammonium nitrate (NH₄NO₃). When this salt dissolves in water, it decreases the temperature of the surroundings. This happens because the process is endothermic (absorbs heat from the surroundings). By convention, when a process is endothermic, the standard enthalpy carries a positive sign (ΔH° > 0).
Answer:
This is a precipitation reaction: AgCl is the formed precipitate.
