Which of the following elements is very reactive and needs to gain one electron to have a full outermost shell? cesium zinc iodine xenon

The enthalpy of formation of water is -285.8 kj/mol. what can be inferred from this statement?

In salt water solution,the salt is the blank

How does a catalyst increase the speed of a reaction? a. the catalyst eliminates the activated complex stage, allowing products to form immediately. b. the catalyst lowers the energy level of the reactants, making it easier for them to react. c. the catalyst makes it easier for the activated complex to form, lowering the activation energy. d. the catalyst raises the energy level of the products, making the reaction finish sooner. reset next