Which is composed of alkenes? welding torch fuel polystyrene cups propane gas degreaser containing hexane

What conclusion can you draw from this experiment about the components of the black ink?

Atoms contain subatomic particles called protons and neutrons. when these protons and neutrons spilt, a lot of energy is released

The primary products of complete combustion of fossil fuels are a. carbon dioxide and water b. methane and water c. carbon monoxide and water d. carbon dioxide and carbon monoxide