Complete and balance the following equation: Al  +    H2SO4 →   In the textbox type your balanced equation. For subscripts use the bottom X2, arrow can be replaced by = or in Insert Math Equation you have an option Arrows.            Polyatomic ions NH4+      ammonium CN –       cyanide OH –        hydroxide NO2–         nitrite NO3–         nitrate C2H3O2–     acetate HCO3–       hydrogen carbonate (bicarbonate) HSO3–       hydrogen sulfite (bisulfite) HSO4–       hydrogen sulfate (bisulfate) MnO4–       permanganate SCN –       thiocyanate ClO4–        perchlorate ClO3–        chlorate ClO2–        chlorite ClO–         hypochlorite   SO32 –      sulfite SO42 –      sulfate CO32 –      carbonate CrO42 –     chromate Cr2O72 –    dichromate C2O42 –     oxalate   PO33 –       phosphite PO43 –       phosphate BO33 –       borate AsO43 –      arsenate   

Copper dropped into hydrochloric acid will dissolve.  

Calculate the theoretical yield (in grams) of ammonia NH3 produced from 3.2 mol of nitrogen in the reaction represented by the following equation: N2   +    3 H2   

In the reaction in the previous question (Question 20),  which substance is the limiting reactant?

How many of the following substances could be precipitate(s) in a precipitation reaction? BaSO4, Ba(NO3)2, BaCl2, Ba3(PO4)2, BaCO3,  Use the solubility table given below.      

Balance the following chemical equation: B5H9   +   O2     →    B2O3   +  H2O Your coefficients are:

Complete and balance the following equation: Al  +    H2SO4 →   In the textbox type your balanced equation. For subscripts use the bottom X2, arrow can be replaced by = or in Insert Math Equation you have an option Arrows.            Polyatomic ions NH4+      ammonium CN –       cyanide OH –        hydroxide NO2–         nitrite NO3–         nitrate C2H3O2–     acetate HCO3–       hydrogen carbonate (bicarbonate) HSO3–       hydrogen sulfite (bisulfite) HSO4–       hydrogen sulfate (bisulfate) MnO4–       permanganate SCN –       thiocyanate ClO4–        perchlorate ClO3–        chlorate ClO2–        chlorite ClO–         hypochlorite   SO32 –      sulfite SO42 –      sulfate CO32 –      carbonate CrO42 –     chromate Cr2O72 –    dichromate C2O42 –     oxalate   PO33 –       phosphite PO43 –       phosphate BO33 –       borate AsO43 –      arsenate   

Calculate the theoretical yield (in grams) of aluminum oxide from 4.6 g of Al and 3.6 g of O2 according to the following reaction.                                                                     4 Al  +  3 O2

A catalist 

In the reaction in the previous question (Question 20),  which substance is the limiting reactant?