The ionic equation for the reaction of aqueous potassium bromide with chlorine gas is shown. 2Br^ - +Cl 2 Br 2 +2Cl^ - Which statement is correct? A B Bromide ions are oxidised by losing electrons. Bromide ions are oxidised by gaining electrons. C Chlorine is oxidised by gaining electrons. D Chlorine is oxidised by losing electrons.

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.