Chemistry Chapters 1-3 Flashcards

Difference Between Ionic and Molecular Compounds

• Ionic compounds consist of ions bonded through ionic bonds, forming ionic lattices in solid phases.
• Molecular compounds are made of molecules held together by covalent bonds, which involve the sharing of electrons.
• Molecular compounds form discrete particles, while ionic compounds create extended networks of alternating cations and anions.

Main Goal of Chemistry

• The primary aim of chemistry is to understand the behavior of matter by researching the behavior of atoms and molecules.
• This understanding may involve connections to other sciences, but the focus remains on atomic and molecular interactions.

Difference Between a Law and a Theory

• A scientific law summarizes observations and provides a consistent description of certain phenomena.
• A theory explains why these phenomena occur, providing a deeper understanding of the underlying principles.
• Laws are established facts, whereas theories may evolve as new information emerges.

John Dalton's Contribution

• John Dalton formulated the atomic theory, which posits that matter is composed of discrete units called atoms.
• This theory laid the groundwork for modern chemistry by explaining the conservation of mass and the combination of elements.

Test your understanding of key concepts from Chemistry Chapters 1 to 3 with these flashcards. This quiz focuses on the differences between ionic and molecular compounds, as well as other essential topics. Perfect for reviewing before exams or reinforcing your knowledge.