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  1. Molecules and compounds overview - Khan Academy

    Compounds can be classified as ionic or covalent. Molecules are the simplest unit of a covalent compound, and molecules can be represented in many different ways.

  2. Molecules, salts, compounds, and chemicals (article ... - Khan …

    So it’s true we can have a molecule which is a compound, like in water, H2O. The atoms are from different elements, hydrogen and oxygen, and are held together by covalent bonds.

  3. Molecules and compounds overview - Khan Academy

    Compounds can be classified as ionic or covalent. Molecules are the simplest unit of a covalent compound, and molecules can be represented in many different ways.

  4. Compounds and chemical formulas (video) | Khan Academy

    Each compound has a unique formula, like CO₂ for carbon dioxide, representing its specific atomic arrangement. Compounds form molecules, tightly bonded units, creating an incredible …

  5. Molecules, compounds, and chemical formulas - Khan Academy

    Learn about how different elements combine to form compounds with entirely new properties and how these compounds can exist as molecules or crystals.

  6. Chiral carbon & chiral drugs | Stereochemistry (article ... - Khan …

    Before we get into the discussion of how to assign a configuration (R or S) to a chiral carbon enantiomer, let us be clear of how the spatial arrangement of the tetrahedral carbon, with …

  7. Atoms and molecules | NCERT Science Class 9 | Khan Academy

    Practice Up next for you: Laws of chemical combination (basic) Get 3 of 4 questions to level up!

  8. Identifying functional groups (video) | Khan Academy

    Finally, let's look at one giant compound with lots of different functional groups, and let's see if we can identify all the functional groups present in this molecule.

  9. Empirical, molecular, and structural formulas - Khan Academy

    Empirical formulas show the simplest whole-number ratio of atoms in a compound, molecular formulas show the number of each type of atom in a molecule, and structural formulas show …

  10. Optical activity (video) | Enantiomers | Khan Academy

    How optically active compounds rotate plane polarized light