precipitating out aluminum hydroxide. When additional base is added, the precipitate dissolves. The reactions can then be reversed with the addition of hydrochloric acid. The precipitate will reappear ...

I've decided to make dancing flames. It's done by burning a mixture of aluminum, copper sulfate and hydrochloric acid.

The acids which react ... acid that the metal has reacted with. Let's look at three metals reacting with three acids. Magnesium plus nitric acid gives us magnesium nitrate. Calcium plus ...