Slowly add stepwise 3-4 chunks of dry ice until the solution becomes yellow-orange in color. Bring the solution back to its original uniform color and repeat the demonstration again. Use a weak acid ...

An acid-base indicator is a substance that changes color as the pH of the solution changes ... This allows it to exhibit a wide range of colors at different pH values. To Conduct Demonstration: ...

A soluble base dissolves in water to form ... Watch this video of a practical demonstration in which copper carbonate and sulfuric acid react to produce copper sulfate.

All alkaline solutions contain more hydroxide ions than hydrogen ions. Adding water to an acid or base will change its pH. Water is mostly water molecules so adding water to an acid or base ...