Chemistry Unit 1: Mixtures and Compounds

Elements

• Aluminum is classified as an element, a pure substance consisting of only one type of atom.
• Nitrogen is another example of an element, essential for biological processes and a major component of the Earth's atmosphere.
• Sulfur is an element known for its role in various biological and industrial processes.
• Mercury is a unique element, a metal that remains liquid at room temperature.

Compounds

• Carbon dioxide is a compound composed of carbon and oxygen atoms, fundamental for respiration and photosynthesis.
• Sulfuric acid is a strong acid used in various industrial processes and as a laboratory reagent.
• Water is a vital compound made of hydrogen and oxygen, essential for all known forms of life.
• Grain alcohol, also known as ethanol, is a compound commonly used as an alcohol beverage and in industrial applications.

Solutions

• Sugar and water create a solution, a homogeneous mixture where sugar is evenly distributed in water.
• Gasoline serves as a solution made up of various hydrocarbons, utilized as fuel in combustion engines.
• Carbon particles and sugar can form a solution, illustrating the ability of sugar to dissolve in liquids.
• Air is a natural solution that contains a mixture of gases, primarily nitrogen and oxygen, supporting life on Earth.

Heterogeneous Mixtures

• An orange is a heterogeneous mixture, as it contains different components such as juice, pulp, and skin that are not uniform.
• A pencil, composed of wood, graphite, and other materials, represents a heterogeneous mixture due to its various components.
• Raisin bread is a heterogeneous mixture where raisins and dough are distinctly visible and not uniformly distributed.
• Water and instant coffee create a heterogeneous mixture, with undissolved coffee particles visible alongside the liquid.

Test your knowledge on elements, compounds, solutions, and heterogeneous mixtures with these flashcards. Each card presents a term paired with its corresponding definition. Perfect for reviewing fundamental concepts in chemistry.