Question

13 which of the following is not a characteristic of pure substances? a cannot be broken down into simpler substances b have consistent properties throughout c can be separated into components by physical means d consist of a single type of atom or molecule

Explanation:

Pure substances are either elements (single - type atoms) or compounds (single - type molecules). They have consistent properties and cannot be separated into components by physical means. Elements cannot be broken down into simpler substances by chemical means (except in nuclear reactions).

Answer:

C. Can be separated into components by physical means