Answer:
Argon (Ar)
Explanation:
I took the chapter test, and it was the right answeerrrrr
2Ag+(aq) + CO2-_3(aq)-----------Ag2CO3
Interactions to an organism can be both harmful and beneficial due to the organism's circumstances. For example by adding tadpoles to an eco system it results in the tadpoles eating all the food thus killing the other organisms. Whereas by adding plants to an ecosystem it provides shelter for the organisms and possibly food being beneficial.
