Answer:
D. Strong acid-strong base reactants—more acidic solutions
Step-by-step explanation:
A strong acid and strong base solution will neutralize each other. The solution has an equal number of proton (H⁺) and hydroxide ions (OH⁻).
For example, HCl + NaOH → NaCl + H₂O
NaCl is a neutral salt where are HCl and NaOH are strong acids and base respectively. NaCl solution has a pH close 7.0 making it neither acidic nor basic.