Which pair of substances would most likely result in the production of a gas when reacting with an acid

Which is a character of nuclear fusion but not nuclear fission

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?

If i can still dissolve more sugar into the solution at a certain temperature what would i call that solution