こと vs. もの
Both of these words mean thing; こと is used for intangible things like ideas and activities, while もの is used for tangible things (physical objects).
食べることが好きです。 食べるものがありません。
Taberu koto ga suki desu. Taberu mono ga arimasen.
I like to eat. (literally I like the eating thing) There is nothing to eat.