They are all examples of elements.
elements
Here a few hydrocarbons. The following are aliphatic hydrocarbons: Methane, ethane, propane, butane, pentane, hexane, heptane, octane, nonane, decane. Aromatic hydrocarbons would include benzene, toluene, xylene etc.
Hemoglobin contain C, H, O, N, Fe.
oxygen, silicon, aluminium
No. Fe is the chemical symbol for iron. Hydrogen is H.
Examples: H, He, Ne, Ar, Kr, He, Rn, N, O, S, Cl, F, Br, I, At, C, Se, P, Uus, Uuo and the metalloids as As, B, Si, Ge, Sb, Te.
Examples: C, O, H.
C, H, O, N, Fe, Si, Al, Ca, S, Na, P
Which molecule most likely has the greatest amount of stored energy in its bonds? A. H-O-H B. Fe-O C. O=C=O D. Na-CI Answer is : ( O=C=O )
H - o - c = o h \ | c = c = c - o - c - c - h / \ | h - c c - h o h \\ // c - c / \ h h
The kerosene moelcule is a hydrocarbon so it is made form hydrogen and carbon
C, H, N, O, Mg, Fe, P, Na, S, Al but others have great uses also