Mercury reacting with oxygen to form Mercuric oxide is ; A combustion reaction
Mercury oxide ( HgO ) appears in various colors and the color of mercury oxide formed when mercury reacts with oxygen is red in color.
This red mercury oxide is formed by heating mercury in the presence of oxygen at a very high temperature of 350°C therefore the reaction between oxygen and mercury to form mercuric oxide is a combustion reaction. and it can also be obtained through the pyrolysis of Hg(NO₃)₂ as well.
Hence we can conclude that Mercury reacting with oxygen to form Mercuric oxide is ; Combustion reaction
Learn more : https://brainly.com/question/21170540
