Calculate the change in enthalpy for the following reaction using your data from parts a and b and applying hess's law. mg(s)+2h2o(l)-> mg2+(aq)+2oh-(aq)+h2(g). remember to consider the counter ions in all equations.

Jessica is traveling from miami, florida, to chicago, illinois. using the map, tell one way the land will change during the second half of her trip.

What is the correct lewis structure for chloroform chcl3

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.