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Chemistry (CP)

Módulo 1 · Texto Lab Safety
Módulo 2 · Texto The Scientific Method
Módulo 3 · Multimedia Law Vs. Theory
Módulo 4 · Multimedia Accuracy Vs. Precision
Módulo 5 · Texto Sig-Figs and Scientific Notation
Módulo 6 · Texto Matter
Módulo 7 · Texto Displacement
Módulo 8 · Texto Density
Módulo 9 · Texto SI Units
Módulo 10 · Multimedia Dimensional Analysis
Módulo 11 · Multimedia The Periodic Table
Módulo 12 · Texto Isotopes
Módulo 13 · Texto Nuclear Reactions
Módulo 14 · Texto Nuclear Fission and Fusion
Módulo 15 · Texto Chemical Vs. Nuclear Reaction
Módulo 16 · Texto Electron Shells
Módulo 17 · Texto Ions
Módulo 18 · Texto Solubility and Conductivity
Módulo 19 · Multimedia Types of Bonding
Módulo 20 · Texto Chemical Formulas
Módulo 21 · Texto Functional Groups
Módulo 22 · Texto Electron Domains
Módulo 23 · Texto Polarity Estás aquí
Módulo 24 · Texto Chemical Equations
Módulo 25 · Texto Physical Vs. Chemical Change
Módulo 26 · Texto Types of Reactions
Módulo 27 · Texto Moles
Módulo 28 · Texto Solubility and Molarity
Módulo 29 · Multimedia Miracle Moles
Módulo 30 · Texto Acids and Bases
Módulo 31 · Multimedia pH and pOH
Módulo 32 · Texto Dilutions
Módulo 33 · Texto Neutralization Reactions and Titrations
Módulo 34 · Texto Mol Ratios
Módulo 35 · Multimedia Stoichiometry
Módulo 36 · Texto Endothermic and Exothermic Energy Transfer
Módulo 37 · Texto Specific Heat
Módulo 38 · Multimedia Heating and Cooling Curves and Phase Change
Módulo 39 · Texto Gas Laws and Kinetic Molecular Frequency.

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Módulo 23 de 39 · Texto

Polarity

Enyx Jiang

Polarity

Static electricity
- When two different materials are rubbed together, some electrons can transfer
  - This results in an imbalance of positive and negative charges
Partial charges at different locations on a molecule cause a polar molecule
- Polar molecules are attracted to each other
Polar Molecules: Molecules that are attracted to a charge because they have partial charges on them; one side is slightly negative and the other side is slightly positive
Non-Polar Molecules: Molecules that are not attracted to a charge

Attractive molecules
- Partial Charges- molecules don’t share their electrons equally
  - Polar molecules; have a dipole moment
- Non-polar molecules- share their electrons equally; have no charge
  - 2 polar bonds may cancel out if they are going in opposite directions
- Intermolecular Forces- Attraction between molecules (not within)
  - Forces that hold liquids and solids together
    - When a substance melts or boils intermolecular forces are broken
    - When a substance condenses or freezes, intermolecular forces are formed