You didn’t include options but if you want the element. 0-17 has 8 protons and 9 neutrons
Answer is: the hydronium ion (H₃O⁺) concentration is greater than hydroxide ion (OH⁻)<span> concentration.
</span><span>Bases (more hydroxide ions than hydronium ions) turn red litmus paper blue and acids (more hydronium ions than hydroxide ions) turn blue
litmus paper red.
</span><span>Acids and bases have opposite properties and have the ability to
neutralize each other. Acids taste sour, give sharp stinging pain
in a wound and react with metals to produce hydrogen gas.</span>
They share four electrons, two from each oxygen atom
All I have to say is karma