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 ...

Kits (pH) containing the necessary chemicals and color charts are available from garden stores ... Most minerals and nutrients are more soluble or available in acid soils than in neutral or slightly ...

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 ...