Question

SUMMATIVE TEST Direction: fill in the Venn diagram below with similarities and differences between pure substances and mixtures homogeneous. homogeneous/ heterogeneous. it has fixed boiling point. it has varying boiling point. it melts completely​

Answer 1

Answer:

One useful way of organizing our understanding of matter is to think of a hierarchy that extends down from the most general and complex to the simplest and most fundamental (Figure 3.4.1 ). Matter can be classified into two broad categories: pure substances and mixtures. A pure substance is a form of matter that has a constant composition (meaning that it is the same everywhere) and properties that are constant throughout the sample (meaning that there is only one set of properties such as melting point, color, boiling point, etc. throughout the matter). A material composed of two or more substances is a mixture. Elements and compounds are both examples of pure substances. A substance that cannot be broken down into chemically simple