Not all of the orbitals in the N=4 shell are shown in this figure. Which sub shells are missing

What are the resulting coefficients when you balance the chemical equation for the combustion of ethane, c2h6? in this reaction, ethane is burned in the presence of oxygen (o2) to form carbon dioxide (co2) and water (h2o). (g)+(g)→(g)+(g)

What is the percentage composition of carbon in the compound ch4

The appropriate concentration for an iodine sanitizer is