A 25.00 mL sample of a hydrochloric acid solution of unknown concentration was titrated with 0.09899 M NaOH solution. Calculate the concentration of the acid if the initial burette reading is 2.14 mL and the burette reading when the endpoint was observed was 21.62 mL

How can you use chemical equations to predict the products of the reaction you can carry out?

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.)

Why do cells appear different in distilled water than they do in 10% salt water?