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Understanding Covalent Compounds and Chemical Formulas in Exercises

This correction details exercises focused on covalent compounds and their chemical formulas. It explores the formation of common compounds such as NaCl, Li2O, and MgF2, emphasizing the concept of shared electrons in covalent bonds. The exercises include identifying and correcting formulas while applying the rules of chemical bonding. This hands-on approach aims to reinforce the understanding of the composition and structure of various covalent substances, valuable for chemistry students and enthusiasts looking to grasp these fundamental concepts.

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Understanding Covalent Compounds and Chemical Formulas in Exercises

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  1. Correction Devoir 5

  2. Exercice -1 +1 + Cl Cl Na Na + NaCl O O -2 +1 + 2 Li Li + Li + Li2O

  3. Exercice -1 +2 Mg + + 2 + O Ca MgF2 Mg F F F +2 -2 + O Ca + CaO

  4. H et O (covalente= partage) H O H H2O

  5. Br et Br (covalente= partage) Br Br Br2

  6. H et F (covalente = partage) H F HF

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