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here are 3 unknown substances A, B, and C that need to be classified as element, mixture or compound.. Substance A can be broken down by a physical change. Substance B cannot be broken down by a chemical or physical change. Substance C can only be broken down by a chemical change. How would you classify these substances based on the given information?(1 point)

Responses

Substance A is a compound, substance B is an element, and substance C is a mixture.
Substance A is a compound, substance B is an element, and substance C is a mixture.

Substance A is a compound, substance B is a mixture, and substance C is an element.
Substance A is a compound, substance B is a mixture, and substance C is an element.

Substance A is an element, substance B is a compound, and substance C is a mixture.
Substance A is an element, substance B is a compound, and substance C is a mixture.

Substance A is a mixture, substance B is an element, and substance C is a compound.

1 answer

Based on the descriptions provided:

  • Substance A can be broken down by a physical change, which indicates that it is a mixture (mixtures can be separated into their components by physical means).
  • Substance B cannot be broken down by a chemical or physical change, which indicates that it is an element.
  • Substance C can only be broken down by a chemical change, which indicates that it is a compound (compounds can only be separated into their constituent elements through chemical means).

Therefore, the correct classification would be:

Substance A is a mixture, Substance B is an element, and Substance C is a compound.

This matches the response: "Substance A is a mixture, substance B is an element, and substance C is a compound."