The first one. observe that numerator and denominator are of same type in all other cases. but in 1st one, its length/volume which is crazy. how can one equate length to volume ? no way.
It is OH- (hydroxide ion)
Salt + water
Example :
acid base salt water
↓ ↓ ↓ ↓
HCl <span> + NaOH = NaCl + H</span>₂<span>O
</span>Hydrochloric Acid + Sodium Hydroxide = Sodium Chloride + Water
hope this helps!
Answer:
An ionic bond is an attraction between ions of opposite charge in an ionic compound.
