A. Balance the following 3 skeleton equations b. Name the type of reaction for each balanced equation

NaOH + H3PO4 --> Na3PO4 + H2O

type:

b) Fe + O2 → Fe2O3

type:

c) Pb(CO3)2 + AgNO3 →Ag2CO3 + Pb(NO3)4

type:

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?

Earth's axis of rotation is tilted at an angle of 23.5 degrees. what is one change you would see on earth if its axis was not tilted?

Determine the empirical formula for succinic acid that is composed of 40.60% carbon, 5.18% hydrogen, and 54.22% oxygen.