Final answer:
When a substance undergoes a transformation into another type of matter, it experiences a chemical change, which is a process involving the formation of new substances with different properties from the original matter. so, option C is the correct answer.
Step-by-step explanation:
When a substance changes from one type of matter to another, it has undergone a chemical change. A chemical change, also referred to as a chemical reaction, occurs when bonds are broken and/or formed between molecules or atoms. This transformation means that one substance with a certain set of properties is turned into a different substance with distinct properties. Chemical changes often involve observable signs such as color change, temperature change, formation of bubbles, emission of light, or the production of a precipitate. Unlike physical changes which only alter the appearance or form of a substance without changing its molecular structure, chemical changes result in the formation of new substances with new chemical properties and are often harder to reverse.
In chemistry, changes in matter are classified as either physical changes or chemical changes. Physical changes are changes that do not alter the identity of a substance, such as changes in state or shape. Chemical changes, on the other hand, occur when one substance is turned into another substance through the breaking and forming of chemical bonds.
Observations that indicate a chemical change has occurred include color change, temperature change, light given off, formation of bubbles, formation of a precipitate, and more. Chemical changes are frequently harder to reverse than physical changes.