How many elements are found in the following chemical equation? k + cl → kcl a. 1 b. 2 c. 3 d. 0

Option (B) is the correct answer.

Explanation:

An element is defined as a substance that contains same type of atoms.

For example, element K contains only atoms of potassium.

Whereas a substance in which two or more different elements chemically combine together in a fixed ratio by mass is known as a compound.

For example, KCl contains atoms of K and Cl in 1 : 1 ratio. Hence, it is a compound.

Therefore, in the chemical reaction, there are only two elements which are K and Cl.