Please help me it's just one question! A solution has a [H3O+] of 1 × 10−5 M. What is the [OH−] of the solution? (4 points)

9 M
14 M
1 × 10−9 M
1 × 10−14 M

Read these sentences from the text. near the equator, the tropics receive the most rain on a consistent basis. as a result, the fresh water falling into the ocean decrease the salinity of the surface water in that region. [. .] . . as the salt content of sea water increases, so does its density. what can you infer about how rain affects the density of surface water near the equator?

According to the diagram; a) identify the anode of the cell and write the half-reaction that occurs there b) write the overall equation for the reaction that occurs as the cell operates c) calculate the value of the standard cell potential ,e cell. d)write the shorthand notation of the cell above e)indicate the flow of the electrons on the diagram

What is the percent by mass of oxygen in fe2o3