Acompound is made up of iron and oxygen, only. the ratio of iron ions to oxide ions is 2: 3 in this compound. the iupac name for this compound is
(1) triiron dioxide (3) iron(iii) oxide
(2) iron(ii) oxide (4) iron trioxide

Draw metallic bonding if two copper

Answer asap need by wednesday morning explain how a buffer works, using an ethanoic acid/sodium ethanoate system including how the system resists changes in ph upon addition of a small amount of base and upon addition of a small amount of acid respectively. include the following calculations in your i. calculate the ph of a solution made by mixing 25cm3 0.1m ch3cooh and 40cm3 0.1m ch3coo-na+. [ka = 1.74 x 10-5 m] ii. calculate the ph following the addition of a 10cm3 portion of 0.08 m naoh to 500cm3 of this buffer solution. iii. calculate the ph following the addition of a 10cm3 portion of 0.08 m hcl to 200cm3 of the original buffer solution.

To find the enthalpy of a reaction in the lab, you measured the of the reactants and the change during the reaction.