A solution with a pH value which is less than 7 is acidic. The acids which react with metals usually have quite a low pH, of either 3 or less. Some metals react with acids and when they do the ...

Students add laundry detergent powder (a base) and cream of tartar (an acid) to the indicator and see that the two solids cause different color changes. Students recognize that a particular color ...

In this reaction we will investigate the reaction between ethanoic acid and calcium carbonate. All acids produce carbon dioxide gas when reacted with a metal carbonate.

More information: Sanjiang Pan et al, Er-Doping Enhances the Oxygen Evolution Performance of Cobalt Oxide in Acidic Medium, ...