1. If 151.77 grams of K (39.10 g/mol) are reacted, how many grams of Mg (24.31 g/mol) will be produced?
2K + MgBrı + 2KBr + Mg

Answerδh > 0explanationc₆h₆  (s)  → c₆h₆ (l)if you are changing it from a solid to a liquid, you are pretty much melting the solid. this requires heat energy. therefore, the reaction is endothermic (takes in energy); the system enthalpy increases as the reaction proceeds: δh > 0.

Into because calcium makes cells