High School Chemistry: Atoms, Molecules & Ions

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Paid

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Level

Intermediate

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Free

Last updated on May 7, 2026 12:53 pm

This free course is especially useful for those taking the Regents Exam of New York State in Chemistry. It looks at the periodic table and chemical formulas.

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This course is designed to teach basic concepts of the periodic table. It analyzes properties of the periodic table relevant to successfully writing chemical formulas. The categorization of elements into groups and periods is also carefully explained to fulfill the needs of learners taking the Regents Exam in Chemistry in New York State but the course is a good refresher for any chemistry student.

What You Will Learn In This Free Course

  • Discuss the physical properties of a…
  • Recall the ionic charge and electron…
  • Identify whether an ionic compound i…
  • Describe observations that are evide…
  • Discuss the physical properties of an element based on the physical properties of other elements in the same group
  • Recall the ionic charge and electron configuration of cations and anions
  • Identify whether an ionic compound is soluble in water based on the solubility rules
  • Describe observations that are evidence of a chemical reaction
  • Solve calculations related to the molar mass of a substance
  • Compute the empirical formula of chemical compounds
  • Define an electron dot formula for any main group element
  • Periodic Tables and Elements

    In this module, you will learn about the categorization of elements into different groups and periods of the periodic table. You will also learn about aspects of various atoms, electrons, and ionic charges as properties of elements in the periodic table.

    Writing Formulas and Chemical Equations

    In this module, you will learn about various aspects of writing chemical formulas together with their ionic components. Also, you will learn about writing various chemical reaction equations with the rules involved for the different compounds involved.

    Mole Concept and Stoichiometry

    In this module, you will learn about concepts surrounding Avogadro’s number and its function in calculating aspects useful to atoms and moles in chemical equations. You will also learn about both molar mass and molar volume together with formula calculations.

    Course assessment

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      High School Chemistry: Atoms, Molecules & Ions
      High School Chemistry: Atoms, Molecules & Ions
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