As NH4OH is added to an HCl solution, the pH of the solution A. increases as the OH- concentration decreases
B. increases as the OH- concentration increases
C. decreases as the OH- concentration decreases
D. decreases as the OH- ion concentration increases

let that person have a turn to speak : )

frequency, z, and the collision density, z, in carbon dioxide (co2), r 180 pm at 30 °c and 120 kpa

shield volcanos are angry and get mad over the smallest things so much that there heads erupt   pahoehoe and a'a lava. a composite volcano is the poller opposite of a shield volcano. its   peaceful thing and knows how to control its emotions.