The Ph scale measures the acidity or alkalinity of water soluble substances (pHstands for 'potential of Hydrogen'). A pH value is a number from 1 to 14, with 7 as the middle (neutral) point. Values below 7 indicate acidity which increases as the number decreases, 1 being the most acidic.
Answer:
A thin, atmosphere-like volume surrounding a planet or natural satellite where molecules are bound to that body, but where the density is too low for them to behave as a gas by colliding with each other.
Explanation:
<span>False is a statement to a person or group made by another person or group who knows it is not the whole truth, intentionally.</span>
