Which of the following is true about the results of a neutralization reaction?
A. An acid and a base form water and salt.
B. Water reacts with a base to form the hydroxide ion.
C. Water reacts with an acid to form the hydronium ion.
D. An acid and a base dissociate into their ions.
Answer is A
A water and base form water and salt. Standard acid-base reaction is a neutralization.
To determine the correct answer, we need to understand what a neutralization reaction is. A neutralization reaction occurs when an acid and a base react with each other to form a salt and water.
Now let's evaluate each option:
A. An acid and a base form water and salt. - This statement is true. During a neutralization reaction, the hydrogen ions (H+) from the acid combine with the hydroxide ions (OH-) from the base to form water (H2O), and the remaining ions form a salt.
B. Water reacts with a base to form the hydroxide ion. - This statement is not true. In a neutralization reaction, water is not formed from the reaction between just water and a base. Instead, it is formed by the reaction of an acid and a base.
C. Water reacts with an acid to form the hydronium ion. - This statement is not true. The hydronium ion (H3O+) is formed when an acid donates a proton (H+) to water, but it does not directly form during a neutralization reaction.
D. An acid and a base dissociate into their ions. - This statement is not true for a neutralization reaction. In a neutralization reaction, acids and bases react with each other rather than dissociating into their ions.
Therefore, the correct answer is:
A. An acid and a base form water and salt.