What happens in the following cases. [ ( write two eg for each also write is there any ex change of energy ) ] i) when an element combine with another element. ii) When an element combine with a compound. iii) When a compound combine with another compound.

2. how is heavy water different from normal water

This flow chart shows the amount of energy that is emitted by each type of light. ultraviolet > blue light > yellow light > red light (maximum energy) (minimum energy) in an experiment, shining which type of light on a strip of metal would be least likely to produce the photoelectric effect? ultraviolet light dim blue light bright red light bright yellow light

Match the mixture with the substance// i really need on this guys (it’s a pic btw)