text: classify the following as precipitation/ox-redux/bronsted-lowrey neutralization reactions.? it would be helpful if i knew how to figure this stuff out on my own.  elemental copper and nitric acid form copper nitrate, nitrite, and water  copper nitrate and sodium hydroxide form copper hydroxide and sodium nitrate  copper hydroxide and sulfuric acid form copper sulfate and water  copper sulfate and sodium phosphate form copper phosphate and sodium sulfate  copper phosphate and hydrochloric acid form copper chloride and phosphoric acid  copper chloride and magnesium form copper and magnesium  also - "what is the purpose of each of these reactions" (i don't even understand what this question is asking!) oxidation