Aflashlight converts chemical energy into light energy, and ajoule is roughly the energy used by a flashlight turned on for one second. Given these facts, what is converted in a flashlight among the following options:
- hydrogen and oxygen
 - adding heat
 - an electron lens
 - hydrogen to water
 - chemicals to light
 - batteries into solar
 - heat into light
 - chlorofluorocarbons


 

     chemicals to light    