Find the two errors .. pH is a measure of the concentration of OH ions in a solution of an acid or base. The pH scale plots the concentration of solutions in a range
from 0-16.(2 points)
pH is a measure of the concentration of Htions in a solution of an acid or base. The pH plots the concentration of solutions in a
range from 0-14
Oь
pH is a measure of the concentration of H* ions in a solution of an acid or base. The basic scale plots the concentration of
solutions in a range from 0-16.
Ос
pH is a measure of the concentration of OH ions in a solution of water. The pH scale plots the concentration of solutions in a
range from 0-12
Od
pH is a measure of the concentration of OH ions in a solution of an acid or base. The acid scale plots the concentration of
solutions in a range from 0-16.

In a sample of oxygen gas at room temperature, the average kinetic energy of all the balls stays constant. which postulate of kinetic molecular theory best explains how this is possible? a. attractive forces between gas particles are negligible because the particles of an ideal gas are moving so quickly. b. collisions between gas particles are elastic; there is no net gain or loss of kinetic energy. c. gases consist of a large number of small particles, with a lot of space between the particles. d. gas particles are in constant, random motion, and higher kinetic energy means faster movement.

When the speed of the bottle is 2 m/s, the average maximum height of the beanbag is m.

The last few miles of the marathon are the most difficult for heather, her hair plastered to her head, sweat clinging to her arms, and her legs already feeling as if they had nothing left, just dead weight. after grabbing a cup of ice water, she feels the ice cubes smash against her nose as she gulps some cool refreshment and keeps on running. in these last few miles, the breeze kicks up and she finally feels some coolness against her skin. drips of sweat, once clinging to her forehead, now spill down, and heather feels more pain as the sweat flows into her eyes. which of the following is the most likely reason why the ice struck heather’s nose when she took a drink? a) water can function as a solvent. b) water can store large amounts of heat. c) water can moderate temperatures through evaporative cooling. d) the density of water decreases when it freezes. e) water has a cohesive nature. sweat remained on heather’s forehead and arms because of the a) high salt content of sweat b) cohesive nature of water c) ability of water to moderate heat d) high evaporative cooling effect of water e) ability of water to act as a solvent