Answer:
Is pink in base solution, it provides a visual signal that a solution has changed from acid to a base, is colorless in acid solution.
Explanation:
As all the indicator, phenolphtalein has the property that turns pink when the solution that you have reaches a value of a pH of 9 or above. From 0 to 8 in a pH scale, is colorless. This point in which an indicator changes is it called equivalence point.
<span>use a mortar & pestle to grind the solute into smaller particles, thus increasing the surface area.</span>
That would be the waxing and waning crescents.
Hope it helps!
Michael uses a car that burns
fossil fuels. COMBUSTION REACTION
Alan grows tomatoes on
his farm. PHOTOSYNTHESIS
Lisa eats eggs for breakfast. RESPIRATION
