What is the formula of the compound in which the atom combining ratios are: Carbon : hydrogen : oxygen = 3 : 8 : 1
Enter the elements in the order given

If a hydrogen atom is neutral, it must also have  one electron. an oxygen atom (o) has an atomic number of eight (8). this means a neutral oxygen atom has eight protons and eight electrons. the element actium (ac) has an atomic number of 89, so it has 89 protons and 89 electrons in a neutral atom

Carbon based or cells?

The answer is b electromagnetic i believe, i hope i ya out!