Answered

Which statement best describes what happens during a chemical change?


ABoth the identity and the properties of a substance change.
BSome properties of a substance change, but its identity remains the same.
CThe chemical properties of a substance change, but its physical properties remain the same.
DThe physical properties of a substance change, but its chemical properties remain the same.

Verified Answer :

Final answer:

A chemical change results in the transformation of substances into new substances with different properties, affecting both their identity and characteristics. The correct answer is that both the identity and properties of a substance change during a chemical reaction. Understanding this concept is crucial in the study of chemical reactions.


Explanation:

Chemical Change: Understanding the Concept

A chemical change refers to a process where substances react with one another to form new substances with distinct properties. During this transformation, both the identity and the properties of the original substance change. For example, when iron rusts, it reacts with oxygen in the air to form iron oxide, resulting in a material that is different from iron in terms of physical and chemical properties.

Answer Choices Analysis

  • Both the identity and the properties of a substance change. - This is the correct choice, as this definition encapsulates the essence of a chemical change.
  • Some properties of a substance change, but its identity remains the same. - This describes a physical change, not a chemical change.
  • The chemical properties of a substance change, but its physical properties remain the same. - This is also incorrect, as both types of properties typically change during a chemical reaction.
  • The physical properties of a substance change, but its chemical properties remain the same. - This statement describes a physical change.

In conclusion, the statement that best describes what happens during a chemical change is that both the identity and the properties of a substance change.


Learn more about chemical change here:

https://brainly.com/question/36875364


Related Questions