Which of following is not an ingredients for photosynthesis? A. oxygen
B. carbon dioxide
C. light energy
D. water

Determine the number o moles of ions/atoms/particle in the following: 2.50 miles of k2s (let me know how to do)

Smog is the term used to describe the combination of fog and smoke

Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)