Hydrocarbons Reactions

I made this back in 11th grade, and I didn't have a chance to present it, I know a lot might not benefit from it because it's in Arabic, but still, you can get the picture :)

We were supposed to make a "reaction scheme" for hydrocarbons, I don't really know what it's called in English :P

The "mystery compounds" are revealed in this image

This is how I intended to present and explain the reaction. I colored the small metal balls to represent oxygen, hydroxide, carbon, and halogen..