The molecular formula for what you described is N2O4, otherwise known as <span>dinitrogen tetroxide. It is very useful as a synthesizing reagent, and also as an oxidizer which is why it is used in rocket propulsion engineering. </span>
The force due to friction is generally independent of the contact area between the two surfaces. This implies regardless of whether you have two overwhelming objects of a similar mass, where one is half as long and twice as high as the other one, despite everything they experience the equivalent frictional power when you drag them over the ground.
Using the atomic weights, K = 39, O=16 so KO2= 39+32=71. So K=39/71= 0.549 of KO2 and O2=32=0.45KO2 and O2=8g and 0.45KO2=8g so KO2=8/0.45=17.77g. So to check, K=0.549 x 17.77g=9.76 and so K+O2= 9.76+8g=17.76.
A pure substance made up of different elements
hope this helped!!
