Final answer:
option a, Acids reacting with bases to form salts and water is a chemical property.
Step-by-step explanation:
The ability of acids to react with bases to form salts is a statement about the acids' chemical properties. This type of reaction is known as a neutralization reaction and it produces water and an ionic compound termed a salt.
Chemical properties describe the characteristic ability of a substance to react to form new substances, such as flammability, reactivity with acids, or, in our case here, the potential of an acid to neutralize a base. Physical properties, on the other hand, can be observed and measured without changing the chemical composition of a substance, things like mass, color, and volume.
Acids and bases have the ability to react with each other to form salts. This is a statement about the acids' chemical properties. A salt, in chemistry, is an ionic compound made by combining an acid with a base, and this reaction is called a neutralization reaction.