• The learning process is entertaining and exciting
  • The solved tasks turn into coordinates
  • The chance to follow your progress
  • Along with your schoolmates and friends, go on an adventure, searching for hideouts
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212.3. Chemical periodic table and structure of the atom.

Write the answer!

In which group chemical element Ba belongs to (answer must be written in arabic, addition to it A/B subgroup symbol, for example VIIB.)?
Insight in substances microstructure.
Periodic table of chemical elements and atom structure.

Solve tasks to find hidden Geo point coordinates

  1. Algebra: Albraic fraction.
  2. Algebra: Concept of reverse proportionality
  3. Algebra: Rational expression.
  4. Algebra: Absolute and relative mistake of approximation
  5. Algebra: Hyperbola.
  6. Geometry: Rectangular (S = ab, a, b - edges) and area of the square (S=a^2 , a - edge) formula.
  7. Chemistry: Atoms un ķīmiskie elementi.
  8. Physics: Ultrasound, Infrasound and sound usage.
  9. Algebra: Solution of linear equalities and inequalities.
  10. Chemistry: Laboratory tableware and accessories.