A (hydrogen chloride) can be corrosive.Logical formLearned from2 sentences. Atomic hydrogen may undergo an (emission spectrum).Logical formLearned from2 sentences. Secondary structures may be defined by patterns of (hydrogen bonds).Logical formLearned from2 sentences. (Hydrogen atoms) can be in a (ground state).Logical formLearned from2 sentences. Hydrogen can be unsuitable for use.Logical formLearned from2 sentences. Hydrogen may show that something-is-the-case.Logical formLearned from2 sentences. Power may be used for generatting hydrogen.Logical formLearned from2 sentences. A study can be constituted-of-or-filled-with hydrogen.Logical formLearned from2 sentences. A method can be constituted-of-or-filled-with (hydrogen storage).Logical formLearned from2 sentences. A (hydrogen infrastructure) may consist of (hydrogen pipeline transport).Logical formLearned from2 sentences. Hydrogen may use (chemical energy) from coal.Logical formLearned from2 sentences. Research may lead to a (hydrogen supply).Logical formLearned from2 sentences. A difference can be (hydrogen output).Logical formLearned from2 sentences. A (carbon black & hydrogen process) can be a method.Logical formLearned from2 sentences. Hydrogen may be produced on site.Logical formLearned from2 sentences.