A hydrogen can be heated.Logical formLearned from2 sentences. (Hydrogen sulfide) may be produced by (living organisms).Logical formLearned from2 sentences. Stars may convert hydrogen.Logical formLearned from2 sentences. A hydrogen may undergoe fusion.Logical formLearned from2 sentences. Hydrogen may undergo a preponderance.Logical formLearned from2 sentences. A (hydrogen fuel) may be pumped through a (heat exchanger).Logical formLearned from2 sentences. A pentamer can be constituted-of-or-filled-with (hydrogen cyanide).Logical formLearned from2 sentences. Elements can be (hydrogen bonds).Logical formLearned from2 sentences. Bases may form (hydrogen bonds).Logical formLearned from2 sentences. Hydrogen may be combined with (carbon dioxide).Logical formLearned from2 sentences. An equation can be for hydrogen.Logical formLearned from2 sentences. A (hydrogen ion activity) can be known.Logical formLearned from2 sentences. (Waste materials) may contain (hydrogen peroxide).Logical formLearned from2 sentences. A (hydrogen peroxide solution) can be alkaline.Logical formLearned from2 sentences. Hydrogen may diffuse through palladium.Logical formLearned from2 sentences.