Which of the following figures represents (d) a mixture of an element and a compound? (More than one picture might fit each description.)

Verified step by step guidance

1. <Understand the definitions: An element is a pure substance consisting of only one type of atom, while a compound is a substance formed when two or more different types of atoms bond together in fixed proportions. A mixture contains two or more different substances that are not chemically bonded.>
2. <Identify the figures: Look at each figure and determine which ones contain both individual atoms (representing elements) and molecules (representing compounds).>
3. <Check for chemical bonding: Ensure that in the figures you identify, the molecules are distinct and not bonded to the individual atoms, indicating a mixture rather than a compound.>
4. <Consider multiple possibilities: Since more than one picture might fit the description, identify all figures that show a combination of separate atoms and molecules.>
5. <Review your choices: Confirm that the figures you selected indeed show a mixture of an element and a compound, with no chemical bonding between the different types of particles.>

Key Concepts

Elements

Elements are pure substances that consist of only one type of atom and cannot be broken down into simpler substances by chemical means. Each element is represented by a unique symbol on the periodic table, such as H for hydrogen or O for oxygen. Understanding elements is crucial for identifying them in mixtures.

Compounds

Compounds are substances formed when two or more different elements chemically bond together in fixed proportions. They have distinct properties that differ from the individual elements that compose them, such as water (H2O), which is made of hydrogen and oxygen. Recognizing compounds helps in distinguishing them from elements in a mixture.

Mixtures

Mixtures are combinations of two or more substances where each retains its individual properties and can be separated by physical means. They can be homogeneous (uniform composition) or heterogeneous (distinct phases). Understanding mixtures is essential for identifying how elements and compounds interact within them.