Which definition describes a base?

Answer 1

Sodium hydroxide (NaOH) is a classic example of a strong base because it produces hydroxide (OH-) ions and dissociates completely in water. Ammonia is an example of a weak base because it is a proton acceptor.

Answer 2

There are two accepted definitions of bases.

The more usual is the Bronsted-Lowry definition: a base is a species which can accept a proton (hydrogen ion).

The Lewis theory is of wider application (though it would only be used in more advanced work) and defines a base as an electron pair acceptor.

Answer 3

a solution whose pH level is greater than 7 (pure water is very close to 7, and is considered to be neutral). A link to a very good explanation is below.

Answer 4

A base is any solution with a pH greater than 7 (pure water). Bases are slippery, bitter, and include things such as soaps, eggs, and blood.

Answer 5

Water is neutral.

But technically it is an amphoteric substance, meaning it can act as both an acid and a base. However, it is very weak in both respects.

Answer 6

acid