Nitrogen (around 78%), Oxygen (around 21%), and Argon (around 1%).
Hope this helps :)
Chemical is the answer your looking for.
Answer:
C. Dissecting microscope
Explanation:
It is trying to see the surface
The ion in the cathode that gains electrons
I believe the answer is <span>can be elements or compounds
In this case, elements in the decomposition reaction is the substance that cannot be separated into simpler substances.
Compounds, technically act as a reactant in the decomposition reaction, but since the reaction breakdown one substance into two or more, sometimes it exists in the product.</span>