Why do some substances require larger additions before a color change is seen? What does this indicate about the strength of the acid base

Which of the following mining methods disrupts the sea floor?

Which formula can be used to calculate the molar mass of ammonia (nh3)? molar mass of n + molar mass of h 3 × molar mass of n + molar mass of h molar mass of n + 3 × molar mass of h 3 × molar mass of n + 3 × molar mass of h

Compare and contrast refraction of light and sound will give brainliest