Energy given out during hydrogen_______________ is the same as the energy taken in during hydrogen formation during _________________ .
The___________ fuels are used to supply energy produce ________ which is a ________________ gas that contributes to ____________warming and ____________
change.
The high _______________ energy for making hydrogen means a lot of fuel is needed
Combustion reaction is _______________ / gives out energy
Combustion reaction gives out a lot of energy
Hydrogen combustion has a small activation energy
Points about making hydrogen energy change
Making hydrogen is ________________ takes in energy
Making hydrogen takes in a lot of energy as there is a large activation ___________