Final answer:
Solutions, colloids, and suspensions are three types of mixtures with distinct characteristics. Salt, beer, and carbonate of sodium are solutions. Oxygen and helium are gases and not mixtures. Copper, aluminum, and pure gold are elements. Carbon is also an element.
Step-by-step explanation:
Solutions, colloids, and suspensions are three types of mixtures, each with distinct characteristics.
- Solutions: The solute, which is the substance being dissolved, is evenly distributed throughout the solvent. Examples include saltwater (salt dissolved in water) and carbonated beverages (carbon dioxide gas dissolved in liquid).
- Colloids: These mixtures have larger solute particles that do not completely dissolve in the solvent. The particles are evenly dispersed throughout, giving the mixture a cloudy appearance. Milk and mayo are examples of colloids.
- Suspensions: These mixtures have large solute particles that do not dissolve but instead settle over time. Examples include muddy water or sand in water.
Based on these definitions, we can classify the substances as follows:
- Salt - Solution
- Oxygen - Gas, not a mixture
- Copper - Element
- Helium - Gas, not a mixture
- Cerveza (beer) - Solution
- Aluminum - Element
- Carbonate of sodium - Solution
- Anillo de oro puro (pure gold ring) - Element
- Carbon - Element