Tooth decay is a major health concern. For more than 50 years we have been adding fluoride to our water supplies and toothpaste to help p...

 Acetic acid is a weak acid (K a = 1.8×10 -5 ).  The pH of 100 mL of 0.10 mol L -1 acetic acid is 2.9. Hydrocyanic acid is a weak acid (K ...

What is an acid-base indicator? What does it do? Where do we use acid-base indicators? These and other questions about acid-base indicators ...

  What's wrong with science education (in Australian high schools)? Possibly the opinion of those teaching it if this comment by Margare...

 How well do you know the names and symbols of the first 20 elements...   Take this Quiz

  We use electronic devices every day; computers, drones, home security systems, mobile phones, smart speakers, smart watches, etc. If the d...

What is an acid? What is a base? These are both good questions and there is no simple answer. It all depends on how you decide to define the...