It is not a really good flammable object to use for fires.
And it doesn't let the fire have oxygen therefore the fire will go out<span />
The answer is the last one (it needs a medium through which to travel) it is not true about radiation. A radiation is the emission of energy in the form of waves or particles through space or through a material medium. This includes; electromagnetic radiation, such as a radio wave, microwaves, visible light, x rays, and gamma radiation.
Li2O + H2O → 2LiOH
This is the answer
3rd blank write 2