How do you calculate mass and velocity does that equal to a certain amount of more energy or no

Oxidation state of iron in mohrs salt

Which of the following is the correct definition of chemical energy? a. energy an object has because of its motion or position b. energy resulting from the flow of charged particles, such as electrons or ions c. energy produced from the splitting of atoms d. energy stored in chemical bonds of molecules

How many moles are contained in 5.6 l of h2 at stp