An (oxygen atom) may be bonded to some (hydrogen atoms).Logical formLearned from2 sentences. Liquid hydrogen may have density.Logical formLearned from2 sentences. (Hydrogen peroxide) may have roles.Logical formLearned from2 sentences. (Hydrogen peroxide) can be mixed with sulfuric acid.Logical formLearned from2 sentences. (Hydrogen peroxide) may be used as a chemical.Logical formLearned from2 sentences. A process can be for a production of (hydrogen peroxide).Logical formLearned from2 sentences. Substances may contain hydrogen.Logical formLearned from2 sentences. (Hydrogen peroxide) may be formed in a manner by a (glucose oxidase).Logical formLearned from2 sentences. An atom may pertain-to a (chemical element hydrogen).Logical formLearned from2 sentences. A (hydrogen atom) can be an atom of a (chemical element hydrogen).Logical formLearned from2 sentences. An effect may originate from a disruption of (hydrogen bonds).Logical formLearned from2 sentences. A (hydrogen fuel cell vehicle) can be hybrid.Logical formLearned from2 sentences. (Hydrogen bonds) can be between oxygen.Logical formLearned from2 sentences. A symmetric (hydrogen bond) can be a type of (hydrogen bond).Logical formLearned from2 sentences. (Hydrogen bonds) can be important.Logical formLearned from2 sentences.