World of biology on Instagram: "When hydrogen peroxide (H2O2) and potassium permanganate (KMnO4) react, they undergo a redox reaction, resulting in the formation of oxygen gas (O2), water (H2O), and manganese dioxide (MnO2). The reaction is exothermic, meaning it releases heat. Potassium permanganate acts as a catalyst, speeding up the decomposition of hydrogen peroxide into oxygen and water."