Classify each of the following as a pure substance or a mixture. If a mixture, indicate whether it is homogeneous or heterogeneous: (c) a hardboiled egg

Verified step by step guidance

Identify the composition of a hardboiled egg, which includes the shell, egg white, and yolk, each consisting of different materials.

Recognize that a pure substance consists of a single type of material with a uniform and definite composition, while a mixture contains two or more different substances.

Determine that a hardboiled egg is not a pure substance because it is composed of different materials that are not chemically combined.

Assess whether the mixture is homogeneous (uniform composition throughout) or heterogeneous (composition varies throughout).

Conclude that a hardboiled egg is a heterogeneous mixture because it has visibly distinct parts (shell, white, and yolk) with different compositions.

Verified video answer for a similar problem:

This video solution was recommended by our tutors as helpful for the problem above.

Video duration:

Was this helpful?

Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Pure Substances

A pure substance consists of a single type of particle and has a uniform composition throughout. Examples include elements like oxygen and compounds like water. Pure substances have consistent properties such as boiling and melting points, which do not vary regardless of the sample size.

Mixtures

Mixtures are combinations of two or more substances that retain their individual properties. They can be classified as homogeneous, where the components are evenly distributed (like saltwater), or heterogeneous, where the components are not uniformly distributed (like a salad). The properties of mixtures can vary depending on the proportions of their components.

Homogeneous vs. Heterogeneous Mixtures

Homogeneous mixtures have a uniform composition and appearance throughout, making it difficult to distinguish the individual components. In contrast, heterogeneous mixtures contain visibly different substances or phases, allowing for easy identification of the separate components. The classification of a mixture as homogeneous or heterogeneous is crucial for understanding its physical properties and behavior.

Recommended video:

Guided course

01:03

Solubility and Mixtures

Related Practice

Textbook Question

Classify each of the following as a pure substance or a mixture. If a mixture, indicate whether it is homogeneous or heterogeneous: d. crushed ice.

views

Textbook Question

Classify each of the following as a pure substance or a mixture. If a mixture, indicate whether it is homogeneous or heterogeneous: a. gasoline vapor,

views

Textbook Question

Classify each of the following as a pure substance or a mixture. If a mixture, indicate whether it is homogeneous or heterogeneous: (b) sugar crystals

views

Textbook Question

Classify each of the following as a pure substance or a mixture. If a mixture, indicate whether it is homogeneous or heterogeneous: (d) sawdust.

views

Textbook Question

Give the chemical symbol or name for the following elements, as appropriate: c. potassium

Textbook Question

Give the chemical symbol or name for each of the following elements, as appropriate: a. carbon