Which is NOT a balanced equation a) CuCI2 + H2S → CuS + 2HCI
b)AgNO3 + NaI → AgI + NaNO3
c)2C2H6 + 7O2 → 4CO2 + 6H2O
d)MgO + Fe → Fe2O3 + Mg

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?

Why do scientists look for patterns in the world? a. patterns can explain observations. b. patterns never change, no matter what. c. patterns are easy for scientists to detect. d. patterns are all the same, through all time.

What is the maximum number of electrons that an atomic orbital can contain?