Acids and bases make pH indicators turn different colors ... property of a substance and that a color change can also be used as evidence that a chemical reaction has occurred. Students will explore ...

This educational film explores acid-base indicators and their color changes ... The film explains the chemical reactions involved, particularly focusing on bromothymol blue as an indicator ...

A neutralisation reaction is one in which an acid reacts with a base to form water. A salt is also formed in this reaction. Bases are metal oxides, metal hydroxides and metal carbonates.

This pigment is a natural acid-base indicator. It is blue in neutral substances, like plain water. When an acid like lemon juice gets in the water, a reaction makes the indicator molecule change shape ...

The pH of acidic, basic, and neutral aqueous solutions of salts is shown with ammonium chloride, sodium acetate, and sodium chloride. Place beakers containing distilled water and universal indicator ...

Neutralisation is the reaction of an acid with a base that results in the pH moving towards 7. It is a useful process that occurs in everyday life such as in the treatment of acid indigestion and ...

This reaction, essential to acid-base chemistry, is typically understood to yield two water molecules (H₂O). However, the new experimental evidence demonstrates that electron-transfer mechanisms, ...