An acid is a substance that increases the concentration of H₃O⁺ ions in solution. Look at the reaction below of phenol (C₆H₅OH) with water:
Which reactant acts as an acid by contributing a H⁺ ion to create H₃O⁺ in the chemical equation?
a. C₆H₅OH(aq)
b. H₂O(l)
c. C₆H₅O⁻(aq)
d. H₃O⁺(aq)

Mitosis is a type of cell division that produces cells that are identical to the parent cell. meiosis is a different type of cell division that produces cells that carry have a genetic material of the parent cell. based on the information provided how do the purpose of mitosis and meiosis differ

The climate of the continental united states is generally 1. tropical 2. temperate 3. arctic 4. highland

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.