Which type of property can be observed only by changing a substance into a different substance? a. intensive property b. extensive property c. physical property d. chemical property

D. chemical property

Explanation:

Chemical property is defined as the property of a substance which is observed during a reaction where the chemical composition or identity of the substance gets changed due to formation of new substance. For example: toxicity

Physical property is defined as the property which can be measured and whose value describes the state of physical system. For Example: melting point

Extensive property is the property which depends on the amount of substance present. Example: Volume

Intensive property is the property which do not depend on the amount of substance present. Example: Density

the answer is minerals.