Consideración sobre algunos errores conceptuales en el aprendizaje de la Química en el Bachillerato

Resum

Some mistakes frequently found in the learning process of Chemistry in secondary schools are dealth with. Specifically:
— the difficulty in making the difference between mixed and compound substance,
— the difficulty in reasoning the discontinuous nature of matter,
— the associations acorn -element and molecule-compound, - the non comprenhension of the mol concept, etc...
Some suggested solutions are also included.