The other defense against acid is fluoride. As the active ingredient in many toothpastes and rinses, topical fluoride lowers ...

How did Earth transform from a hostile, acidic ocean world to one that nurtured life? Scientists at Yale and in Singapore ...

The pH scale ranges from 0 to 14, with 0 being highly acidic and 14 being highly alkaline. A pH value of 7 is considered ...

Substances that are alkaline are basic, or the opposite of acidic — they have a high pH, while acids have a low pH. Lower pH levels reflect a higher quantity of positively charged particles.

Some products are specifically designed to be a lower pH, such as alpha hydroxy acids, so they can do their function. In this case, the acidic nature helps loosen up all the intracellular glue that ...

Worldwide, many agricultural soils are deficient in the nutrient zinc—despite the fact that farmers use fertilizers enriched with the element. This limits crop yields and reduces food quality.

or use a pH meter to record the pH. You should find that hydrochloric acid has a lower pH than ethanoic acid. This tells us that the hydrochloric acid released more H + ions than the ethanoic acid ...