If the water product is formed with the hydrogen ion from the acids, what ion do the bases donate to form H₂O, water?
a
OH+
b
OH¯
c
H+
d
H-
b. OH¯
Bases donate hydroxide ions (OH¯) to form water (H₂O). So, the correct answer is b. OH¯.
To understand why bases donate hydroxide ions to form water, it's important to know the concept of acid-base reactions. In these reactions, acids release hydrogen ions (H+) and bases release hydroxide ions (OH¯).
When an acid reacts with a base, the hydrogen ion from the acid combines with the hydroxide ion from the base to form water. This is called a neutralization reaction. The water molecule is formed by the combination of the positive hydrogen ion (H+) and the negative hydroxide ion (OH¯). The reaction can be represented as follows:
H+ (from acid) + OH¯ (from base) → H₂O (water)
So, bases donate the hydroxide ions (OH¯) to neutralize the hydrogen ions (H+) from acids and form water.