Differentiate between:

a. Colloids and Suspensions

Aspect Colloids Suspensions
Particle Size 1 nm to 1000 nm Larger than 1000 nm
Visibility Cannot be seen by the naked eye. Can be seen by the naked eye.
Stability Stable, particles do not settle. Unstable, particles eventually settle.
Examples Milk, smoke, fog. Muddy water, sand in water.

b. Elements and Compounds

Aspect Elements Compounds
Definition Pure substances consisting of one type of atom. Substances made from two or more different elements chemically bonded.
Composition Cannot be broken down into simpler substances by chemical reactions. Can be broken down into simpler substances by chemical reactions.
Examples Oxygen (O), Carbon (C), Helium (He). Water (H₂O), Sodium chloride (NaCl), Carbon dioxide (CO₂).

c. Concentrated and Dilute Solutions

Aspect Concentrated Solution Dilute Solution
Concentration Contains a large amount of solute relative to solvent. Contains a small amount of solute relative to solvent.
Taste Strong taste, more intense. Weaker taste, less intense.
Example Sugar syrup, seawater. Lemonade, tea.

Related Questions:

  1. What is the difference between a homogeneous and a heterogeneous solution?
  2. Differentiate between colloids and suspensions.
  3. How can you identify a solvent and a solute?
  4. Describe the states of matter with examples.
  5. Examine the concept of solubility.
  6. Can you write the formula of the carbon dioxide gas that we exhale?
  7. Define element, compound, and mixture.
  8. Differentiate between a compound and a mixture.
  9. Differentiate between a concentrated and a dilute solution.
  10. Define the term allotropes and explain the allotropes of carbon.
  11. If there are 18 protons in an Argon atom, then what is the atomic number of Argon?
  12. Define physical and chemical properties of matter.
  13. Explain the process of sublimation with an example.
  14. How does temperature affect the solubility of a substance?
  15. Why do gases have neither a definite shape nor a definite volume?
  16. Give two examples of industrial chemistry applications.
  17. Explain the importance of chemistry in medicine, agriculture, and industry with examples.
  18. Discuss the role of geochemistry and astrochemistry in understanding Earth and space.
  19. Describe the principles of green chemistry and how they help in environmental protection.
  20. Distinguish between shell and sub-shell.