Entre los siguientes iones es el correcto
Al5-
Sn4+
Na7+
F7-

Determine the percent sulfuric acid by mass of a 1.61 m aqueous solution of h2so4. %

Ted and emily played a mixed doubles tennis match against jack and brenda. in the second match. ted and brenda played against jack and emily. which type of chemical reaction does the situation demonstrate?

According to the diagram, what sources contribute to the phosphorus found in soil? according to the diagram, phosphorus found in soil contributes phosphorus to what other sources?