The answer is (2). The question only ask the production of acid reacts with base. The acid has H+ ion and base has OH- ion. When they react, the production will always contain H2O.
=The measure of warm and coldness of an object or substances with references to some standard value is known as temperature.
= We measure temperature by Fahrenheit (°F) scale, the Kelvin (K), and the Celsius (°C).
It is metal that is why you cook things mainly with metal pots
The neutrons take up most of the space of an atom
