What does the symbol (aq) represent in a chemical equation?

What does the symbol 'u'represent?

What do the following symbols represent in a chemical equation ? (i) s, (ii) g, (iii) aq, (iv) darr , (v) uarr

What does the symbol shown below represent?

What does the following symbols represent?

What does the flower symbolize?

What type of reactions are combustion of coal and formation of water represent by chemical equation

What does these symbols o+ + indicate?