What is the energy change if 84.0 g of calcium oxide (cao) reacts with excess water in the following reaction? cao (s) + h2o(l) yields ca(oh) 2 (s) deltah = -65.2 kj/mol 65.2 kj of heat is absorbed by the reaction. 98 kj of heat is absorbed by the reaction. 65.2 kj of heat is released by the reaction. 98 kj of heat is released by the reaction.

How much energy moves onto the next level, in an energy pyramid

Darla claims that the first periodic table developed by mendeleev was not completely accurate, so it is not useful at all. harmony argues that it establish the periodic table we use today, making it more credible. who is correct and why? darla is correct, because a model that has any mistakes should be thrown out. darla is correct, because a good model would not need to change. harmony is correct, because mendeleev’s model had all of the information correct in the first version. harmony is correct, because mendeleev’s model made predictions that came true.

In saturated organic compounds, all the bonds between carbon atoms are called?