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- H Pocl3 the H2Ol NaOH HC=NME ₂ N HC=0 N H HThe chemical formula for water is H2O. What is the chemical formula for methane?The protein glycophorin A has a sugar group covalently attached to it. It is an example of a de ce à glycoprotein metalloprotein hemoprotein lipoprotein nucleoprotein Ophosphoprotein