$^0$gc resources

$^{1:n}$Complete Chemistry for Cambridge IGCSE, page number $n$

$^2$https://chem.libretexts.org/Courses/Valley_City_State_University/Chem_121/Chapter_5:_Introduction_to_Redox_Chemistry/5.3:_Types_of_Chemical_Reactions

$^3$https://chem.libretexts.org/Bookshelves/Introductory_Chemistry/Beginning_Chemistry_(Ball)/04:_Chemical_Reactions_and_Equations/4.06:_Neutralization_Reactions

$^4$https://www.youtube.com/watch?v=lQ6FBA1HM3s&list=PL8dPuuaLjXtPHzzYuWy6fYEaX9mQQ8oGr

$^5$https://chem.libretexts.org/Bookshelves/Analytical_Chemistry/Supplemental_Modules_(Analytical_Chemistry)/Electrochemistry/Redox_Chemistry/Half-Reactions