Acidic solutions have pH values less than 7 ... for a solution by comparing the colour of the indicator to the colour chart below. An indicator is a substance which will change colour depending ...

Acidic foods (with a pH of 4.6 or lower) are generally safe to consume as part of a healthy, balanced diet. However, they may trigger symptoms for people with certain health conditions.

A pH or acid-base indicator is a compound that changes color depending ... Observe the color of the indicator and record any color change(s) in the chart. Laundry detergent turns the indicator a ...