which layer is broken up into several place which move and float very slowly they're very slow motion is the cause of plate tectonics and process associated with continental drift earthquakes volcanoes and the formation of mountains

What elements have 2 electrons inthe 4s sublevel

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

Use this information to determine the number of calends electrons in the atoms. which of the following correctly compares the stability of the two atoms? a) both are unreactive b) both are highly reactive c) a is unreactive and d is reactive d) a is reactive and d is unreactive