2nd Quarter Review in Chemistry PDF
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This document provides a review of chemistry concepts, including atomic orbitals, chemical bonds, and polymers. It covers topics such as polarity, cohesion, polymerization, and condensation reactions. The document is helpful for students preparing for exams or reviews.
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1. Magnetic quantum numbers govern the spatial orientation of an atomic orbital. 2. Lewis’s electron dot diagrams only show electrons in the outermost orbital of an atom because only those electrons can be involved in chemical bonds. 3. Condensation polymers can all be hydrolyzed to give amino a...
1. Magnetic quantum numbers govern the spatial orientation of an atomic orbital. 2. Lewis’s electron dot diagrams only show electrons in the outermost orbital of an atom because only those electrons can be involved in chemical bonds. 3. Condensation polymers can all be hydrolyzed to give amino acids. 4. HCl is a polar molecule. 5. Sucrose dissolves in water because it is a polar molecule like water, while oil is nonpolar molecule. 6. Polarity and cohesion are the property of water that allows it to be such a versatile solvent. 7. Polymerization occur when the molecules of a substance react together. Polyester are made by condensation polymerization and this monomers from which they are made are unsaturated hydrocarbons. 8. CH3COOH and C2H5NH2 are the pair of compounds that react to form a condensation polymer. 9. Trigonal pyramidal can be formed if the tetrahedral shape in ammonia gets distorted because of lone pair. 10. 1s22s22p63s2 this electronic configuration dictates that an atom is diamagnetic. 11. The structure of singly bonded Lewis dot structure for BF3 has less than an octet on at least one atom. 12. Oxygen is an example of diamagnetic material. 13. Complex Carbohydrates is the same with Terylene. 14. The carbon-carbon bonds in the chain are strong that’s why plastic made from polyester only softern at high temperature. 15. Amino acid is the main monomer of protein. 16. Octet rules explain the relative stability of molecules. 17. CCl4 is a nonpolar covalent molecule. 18. Starches stays in the digestion period the longest. 19. CO2 is nonpolar because its charges are distributed symmetrically and its geometric shape is symmetrical. 20. The general formula of alcohol is R-OH 21. Ribose and Deoxyribose are the sugars that is being utilized by RNA and DNA. 22. The characteristics of condensation polymerization are use of bifunctional or polyfunctional polymer structure, and elimination of a small byproduct molecule. 23. Terylene and complex carbohydrate are the two polymers that have the same linkages bonding the monomers together. 24. The boiling point of hydrocarbon derivatives is higher than of hydrocarbon. 25. Dehydration synthesis is the process that attach the smaller molecules (proteins, lipids, carbohydtares and nucleic acid) to one another.
