Name a sensory organ, and briefly explain its function.

Why does a red shoe appear red in daylight

Which best describes why nh4+ can form an ionic bond with ci-?

Which statement is true about a catalyst? a: a catalyst decreases the rate of the reaction. b. a catalyst is consumed during a chemical reaction. c. a catalyst lowers the activation energy of a reaction. d. a catalyst increases the reactant concentration during a reaction.