Ineeed i will rate

select the properly written and balanced equation for the following chemical reaction: aqueous solutions of sodium hydroxide and iron (iii) nitrate react to produce a precipitate of iron (iii) hydroxide in an aqueous solution of sodium nitrate.

(aq) + fe(no3)3 (aq) fe(oh)3 (s) + 3nano3 (aq)

naoh (aq) + feno3 (aq) feoh (s) + nano3 (aq)

naoh (aq) + fe(no3)3 (aq) feoh3 (s) + nano3 (aq)

3naoh (aq) + feno3 (aq) feoh (s) + 3nano3 (aq)

i believe that it is the first choice but i am not

)benzene and toluene form nearly ideal solutions. consider an equimolar solution of benzene and toluene. at 20 °c the vapour pressures of pure benzene and toluene are 9.9 kpa and 2.9 kpa, respectively. the solution is boiled by reducing the external pressure below the vapour pressure. calculate (i) the pressure when boiling begins, (ii) the composition of each component in the vapour, and (iii) the vapour pressure when only a few drops of liquid remain. assume that the rate of vaporization is low enough for the temperature to remain constant at 20 °c.