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Which reaction may be described as an acid-base neutralization reaction? 1. be(oh)2 + h2so4 → beso4 + 2 h2o 2. ba(oh)2 + 2 licl → bacl2 + 2 lioh 3. naoh + h2o → h3o + + nao− 4. hno2 + h2o → h3o + + no− 2?