Final answer:
The question involves various Chemistry exercises related to drawing resonance structures, predicting and determining chemical formulas, understanding isomers, and constructing chemical structures from IUPAC names.
Step-by-step explanation:
The student is delivering multiple questions related to Chemistry, specifically focused on concepts like resonance structures, chemical formulas, molar mass, and structural isomers. Several exercises are mentioned:
- Drawing possible resonance structures and determining the formal charge on each atom.
- Predicting compound type based on element positions in the periodic table and determining formulas for simple ionic compounds.
- Writing chemical formulae and calculating the relative molecular or formula mass.
- Understanding that compounds with the same molecular formula can have different structures (structural isomers).
- Calculating molar mass and mole concept.
- Constructing chemical structures for named organic compounds.
Each of these exercises requires a strong understanding of fundamental chemical principles and the ability to apply them to solve problems. It's also important for students to be aware of structural isomerism, as different structures can lead to vastly different physical and chemical properties.
Regarding the specific exercise on structural isomers, such as acetic acid (C2H4O2), its isomer could be methyl formate (HCOOCH3), which has the same molecular formula but a different arrangement of atoms. Exercises in organic chemistry often involve naming or drawing the structure of compounds based on their IUPAC names, such as 5-bromo-3-iodoheptanal and 5-bromo-4-ethyl-2-heptanone.