What kind of substance is acid?

Answer 1

Alkaline substances have a pH greater than 7. Cleaning products are alkaline, soap, detergent...

Acidic substances have a pH less than 7. Oranges, lemons, fruit, yoghurt, vinegar, anything with the word acid attached to it are acidic.

Answer 2

Acids are substances that have a pH level of less than seven. Most acids are found in foods, like lemons and vinegar. The strongest acidic substance is the acid in a human's stomach.

Answer 3

Acid is a substance that, when added to water, dissociates (dissolves) to release H+ ions into the water. The higher percent of the acid that dissociates, the stronger the acid.

Answer 4

Producing free hydrogen ions (protons, H+) in dilute solution with water.

Answer 5

A compound that donates a proton in an aquius solution