2.5 piece of lithium is dropped into a 500 g sample of water at 22.1 C. ten temperature of the water increases to 23.5 C. How much heat energy is released in the reaction

1. list three scientific reasons cockroaches may fly.

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

Which of the following units is not an official si unit? mole liter kilogram ampere