Substances And Mixtures Sheet printable pdf download

Substances And Mixtures Sheet

4.1: Introduction to Compounds

Skills to Develop

• Explain the difference between an element, a compound, and a mixture.

Substances and Mixtures

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 it's the same everywhere) and properties that are constant throughout the

sample (meaning there is only one set of properties such as melting point, color, boiling point, etc. throughout the

matter). Elements and compounds are both examples of pure substances.

Mixtures are physical combinations of two or more elements and/or compounds. The term "physical combination" refers

to mixing two different substances together where the substances do not chemically react. The physical appearance of

the substances may change but the atoms and/or molecules in the substance do not change.

The chemical symbols are used not only to represent the elements; they are also used to write chemical formulas

for the millions of compounds formed when elements chemically combine to form compounds. The law of constant

Substances And Mixtures Sheet