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IB Chemistry · Dec 8, 2025 · 6 min read

IB Chemistry: Why Metallic Bonds Conduct Electricity

IB Chemistry guide to metallic bonding and conductivity: learn how delocalized electrons, non-directional bonding, and lattice structure enable electric current.

IB Chemistry · Dec 8, 2025 · 6

IB Chemistry: Polar vs Nonpolar Bonds Explained

IB Chemistry guide to why bonds become polar vs nonpolar: electronegativity, dipoles, shape, and exam tips with RevisionDojo practice links.

IB Chemistry · Dec 8, 2025 · 6

IB Chemistry: Why Electron Pair Repulsion Sets Shape

IB Chemistry guide to why molecular shapes depend on electron pair repulsion (VSEPR). Learn domains, lone pairs, and angle changes fast.

IB Physics · Dec 7, 2025 · 6

IB Physics: Why a Changing Magnetic Field Makes E

IB Physics guide to why a changing magnetic field creates an electric field. Learn Faraday’s law, induced E loops, and exam-ready explanations.

IB Chemistry · Dec 7, 2025 · 6

IB Chemistry: Why the Mole Lets You Count the Unseen

IB Chemistry guide to the mole: learn how moles connect mass to particles, power stoichiometry, and make Avogadro’s constant exam-friendly.

IB Physics · Dec 7, 2025 · 6

IB Physics: What Causes Electric Current to Flow?

IB Physics guide to what causes electric current to flow: electric fields, voltage, drift speed vs signal speed, and resistance for exam answers.

IB Biology · Dec 7, 2025 · 6

IB Biology: How Gel Electrophoresis Separates DNA

IB Biology guide to gel electrophoresis: learn how DNA fragments separate by size, how to read bands, and how to revise it fast for exams.

IB Physics · Dec 7, 2025 · 5

IB Physics: Why Constant Acceleration Makes a Parabola

IB Physics guide to why constant acceleration creates parabolic motion. Learn the kinematics logic, projectile model, and exam-ready tips fast.

IB Physics · Dec 7, 2025 · 6

IB Physics: Thermal Equilibrium at the Microscopic Level

IB Physics guide to thermal equilibrium at the microscopic level: collisions, kinetic energy, and why heat flow stops without particles stopping.

IB Chemistry · Dec 7, 2025 · 6

IB Chemistry: Electron Shielding and Chemical Behavior

IB Chemistry guide to electron shielding: see how shielding changes effective nuclear charge, atomic radius, ionization energy, and reactivity for exams.

IB Chemistry · Dec 7, 2025 · 6

IB Chemistry: Why Temperature Increases Reaction Rate

IB Chemistry guide to why increasing temperature increases reaction rate: kinetic energy, activation energy, Maxwell-Boltzmann, and exam tips.

IB Chemistry · Dec 7, 2025 · 7

IB Chemistry: How Hybridization Explains Geometry

IB Chemistry guide to why hybridization explains molecular geometry: link orbitals to shapes (sp, sp2, sp3), angles, and exam-ready reasoning fast.

IB Chemistry · Dec 7, 2025 · 6

IB Chemistry: Why More Collisions Mean Higher Pressure

IB Chemistry explainer: pressure rises when gas particles collide more often. Learn kinetic theory, gas laws, and exam tips with RevisionDojo practice.

IB Chemistry · Dec 7, 2025 · 3

Why Do Intermolecular Forces Determine Physical States Of Matter?

Learn how intermolecular forces determine physical states of matter and why stronger attractions lead to solids, liquids or gases.

IB Biology · Dec 7, 2025 · 5

IB Biology: Random Orientation in Metaphase I

IB Biology guide to random orientation in metaphase I and how it drives genetic variation through independent assortment, exam tips, and practice links.

IB Chemistry · Dec 7, 2025 · 6

IB Chemistry: Why Electronegativity Changes in the Table

IB Chemistry guide: learn why electronegativity increases across a period but decreases down a group, with exam-ready wording and examples.

IB Chemistry · Dec 7, 2025 · 5

IB Chemistry: Why Melting Needs Energy at Constant Temp

IB Chemistry: Learn why melting still requires energy even when temperature stays constant, using latent heat, particle models, and exam-ready tips.

IB Physics · Dec 7, 2025 · 6

IB Physics: Gravitational Potential and Orbital Motion

IB Physics guide to gravitational potential and orbital motion: energy swaps, orbit types, escape speed, and exam tips with RevisionDojo practice.

IB Chemistry · Dec 7, 2025 · 6

IB Chemistry: Mass Spectrometry and Isotope Composition

IB Chemistry guide to why mass spectrometry reveals isotope composition: m/z separation, peaks, abundance, and exam-ready tips for spectra questions.

IB Physics · Dec 7, 2025 · 6

IB Physics: What Factors Influence Nuclear Stability?

IB Physics guide to nuclear stability: neutron-proton ratio, binding energy, shells, and size. Learn what drives decay and how to revise smarter.

IB Physics · Dec 7, 2025 · 6

IB Physics: Why Wave Frequency Changes When You Move

IB Physics guide to why observed wave frequency changes when the source or observer moves. Learn the Doppler effect, intuition, and exam tips fast.

IB Chemistry · Dec 7, 2025 · 5

IB Chemistry: Why pH Measures Hydrogen Ion Concentration

IB Chemistry guide: learn why pH measures hydrogen ion concentration, how the log scale works, and how Kw links pH and pOH for exams.

IB Physics · Dec 7, 2025 · 5

IB Physics: Why Impulse Makes Collisions Click

IB Physics students: learn why impulse is the cleanest way to understand collisions, connect force and time, and predict momentum changes fast.

IB Physics · Dec 7, 2025 · 6

IB Physics: What Velocity-Dependent Forces Reveal

IB Physics guide to velocity-dependent forces: why magnetic force appears only in motion, stays perpendicular, and changes direction not speed.

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      • Arabic A Lit
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      • Arabic B
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      • Business Management
      • Chemistry
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      • Computer Science (First Exam 2027)
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      • Design Technology (First Exam 2027)
      • Digital Society (DS)
      • Economics
      • English A Lang & Lit
      • English A Lit
      • English B
      • Environmental systems and societies (ESS)
      • French A
      • French A Lit
      • French ab initio
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      • German A Lit
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      • History (First Exam 2028)
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      • Mathematics Applications & Interpretation (AI)
      • Philosophy
      • Physics
      • Psychology
      • Psychology (First Exam 2027)
      • Spanish A
      • Spanish A Lit
      • Spanish ab initio
      • Spanish B
      • Sports, exercise and health science (SEHS)
      • Theory of Knowledge (TOK)
      • World Religions