Ch.1 - Intro to General ChemistryWorksheetSee all chapters
All Chapters
Ch.1 - Intro to General Chemistry
Ch.2 - Atoms & Elements
Ch.3 - Chemical Reactions
BONUS: Lab Techniques and Procedures
BONUS: Mathematical Operations and Functions
Ch.4 - Chemical Quantities & Aqueous Reactions
Ch.5 - Gases
Ch.6 - Thermochemistry
Ch.7 - Quantum Mechanics
Ch.8 - Periodic Properties of the Elements
Ch.9 - Bonding & Molecular Structure
Ch.10 - Molecular Shapes & Valence Bond Theory
Ch.11 - Liquids, Solids & Intermolecular Forces
Ch.12 - Solutions
Ch.13 - Chemical Kinetics
Ch.14 - Chemical Equilibrium
Ch.15 - Acid and Base Equilibrium
Ch.16 - Aqueous Equilibrium
Ch. 17 - Chemical Thermodynamics
Ch.18 - Electrochemistry
Ch.19 - Nuclear Chemistry
Ch.20 - Organic Chemistry
Ch.22 - Chemistry of the Nonmetals
Ch.23 - Transition Metals and Coordination Compounds

Solution: Classify each of the following as a pure substance, a solution, or a heterogeneous mixture:a cup of coffee


Classify each of the following as a pure substance, a solution, or a heterogeneous mixture:

a cup of coffee


We are asked to classify a cup of coffee as a pure substance, a solution, or a heterogeneous mixture.

Recall that mixtures are combinations of two or more pure substances (elements or compounds).

 Mixtures are not chemically combined.

Mixtures can either be:

• Homogeneous: the components are evenly distributed and indistinguishable from each other (e.g. solution)

• Heterogenous: the components are not evenly distributed and distinguishable from each other

In chemistry, a pure substance is a sample of matter with both definite and constant composition and distinct chemical properties

Examples of pure substances include chemical elements and compounds. Alloys and other solutions may also be considered pure if they have a constant composition.

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