The concentration.
Yes, basicity is a chemical property.
Potash
An "acid" is a chemical that has a PH lower than 7.0 and a "base" is a chemical that has a PH higher than 7.0. It would be impossible for a chemical to have a PH both lower and higher than 7.0 at the same time. Pure water has a PH of exactly 7.0 and is therefore neither an acid nor a base.
Add universal indicator.
pH is not a change at all. It is a chemical condition.
The pH is a measure of acidity/basicity of liquids. The pH scale is - by convention - between 0 an 14:- pH under 7: acid- pH=7: neutral- pH over 7: basic
Since oxygen is an inorganic substance, most likely an inorganic chemist would describe the chemical properties of oxygen.
Yes, pH and density are physical properties. pH is a measure of the acidity or basicity of a solution, while density is a measure of the mass of a substance per unit volume. Both properties describe characteristics of a substance that can be observed and measured without changing the chemical composition of the substance.
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No, pH is a chemical property.
The patient has excessive acid in the body fluids. You would treat the patient with a chemical that would raise the pH (lower pH=more acidic, so you need to raise the pH because higher pH=more basic)
To neutralize a neutral chemical, you would need to introduce an acidic or basic chemical to create a chemical reaction that brings the pH to a neutral level, around 7. This can be done by titrating the neutral chemical with an acid or a base until the desired pH is reached.