3H20 + light - CH 03 + 302 What amount and substance balance this reaction?
a.) 3CO2
b.) 3CO3
c.) 3O3
d.) H2O

Write a net ionic equation to show that hydrofluoric acid, behaves as an acid in water.

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.)

Name the element in group 17, period 2. (periodic table)