1. explain how the biogeochemical cycles demonstrate this law

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.)

The chemical bond connecting one nucleotide with the next one along the nucleic acid chain is called a

To calculate percent by mass, use the equation below: calculate the percent by mass of each element. %n = % %h = % %o = %