Question

Water that has a very low pH can be collected from hot springs in the area of Glenwood Springs, Colorado. A low pH indicates which of the following about the water?

a
It has no detectable H+ or OH- ions
b
It has more OH-ions compared to H+ ions
c
It has high concentrations of H+ ions
d
It has equal numbers of positive and negative ions

Answer 1

The answer would be C, it has high concentrations of H+ ions. If an area has a low pH, it is an acidic place (use he pH scale for reference, a low pH is acidic, while a higher pH is more basic). Remember, when acids dissolve, they release HYDROGEN ions (H+). When bases dissolve, they release HYDROXIDE ions (OH-).
So for your question, the water has a low pH... that’s a lot of acid. We’ll say that acidic stuff dissolved in that water. So more hydrogen ions (H+) are released.
Hope this helped a little :)