At what pH level does hydrion paper turn green

In general, litmus paper is red below a pH of 4.5 and blue above a pH of 8.3. If the paper turns purple, this indicates the pH is near neutral.

metamorphism is the change of minerals or geologic texture (distinct arrangement of minerals) in pre-existing rocks (protoliths), without the protolith melting into liquid magma (a solid-state change). the change occurs primarily due to heat, pressure, and the introduction of chemically active fluids. i hoped i !

answerbloodstream;