Solid lithium iodide decomposes into solid lithium and iodine gas . write a balanced chemical equation for this reaction.

According to the diagram, what sources contribute to the phosphorus found in soil? according to the diagram, phosphorus found in soil contributes phosphorus to what other sources?

Elements in group 2 are all called alkaline earth metals. what is most similar about the alkaline earth metals?

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.