What is the conjugate base of h3po4

Hey there!:

a conjugate base  contains  one less  hydrogen atom and one more negative charge thant the acid  that formed  it . All acids have a conjugate base  , all base have a conjugate acid, acids  donate H⁺ when react.

Therefore:

H3PO4 H2PO4⁻

Hope that helps!

a rain shadow is a dry region of land on the side that is protected against the prevailing winds of a mountain range. the prevailing winds are the winds that occur most of the time in a particular place of the earth

prevailing winds carry air toward the mountain range. as the air rises up over a mountain range, the air cools, water vapor condenses, and clouds form. on this side of the mountains, called the windward side, precipitation falls in the form of  rain  or snow. this dry air produces a  rain shadow.

the answer is b. dilution