Questions: Classify the phrases pertaining to pure substances and mixtures as either true or false. True Answer Bank Pure substances cannot be separated by physical means. The components of homogeneous and heterogeneous mixtures cannot be separated. Components of a homogeneous mixture are visibly distinct. Heterogeneous mixtures contain more than one part, and each part has its own properties.

Solution Steps

We need to classify each statement from the answer bank as either true or false based on the definitions of pure substances and mixtures.

1. Pure substances cannot be separated by physical means.

   • A pure substance is composed of only one type of particle and has a uniform composition. It cannot be separated into other substances by physical means. This statement is true.

2. The components of homogeneous and heterogeneous mixtures cannot be separated.

   • Mixtures, whether homogeneous or heterogeneous, can be separated into their components by physical means. This statement is false.

3. Components of a homogeneous mixture are visibly distinct.

   • In a homogeneous mixture, the components are uniformly distributed and not visibly distinct. This statement is false.

4. Heterogeneous mixtures contain more than one part, and each part has its own properties.

   • A heterogeneous mixture consists of visibly different substances or phases, each with its own properties. This statement is true.

Based on the analysis, we classify the statements as follows:

• True:

  1. Pure substances cannot be separated by physical means.
  2. Heterogeneous mixtures contain more than one part, and each part has its own properties.

• False:

  1. The components of homogeneous and heterogeneous mixtures cannot be separated.
  2. Components of a homogeneous mixture are visibly distinct.

Final Answer