PACKAGE;;;CHEM 219 EXAMS WITH COMPLETE SOLUTIONS (LATEST UPDATE)

CHEM 219 Exam 2 (Module 4-6) Questions and Answers 100% Solved The atomic radii of zirconium (Zr) and hafnium (Hf) are nearly the same despite the fact that hafnium has 32 more protons and electrons. Which of the following bests explains this phenomenon? Hafnium contains electrons in the 4f o...

Chem 219 Module 6 Test Questions and Answers 100% Solved amine derivative of ammonia where one or more hydrogen replaced by carbon-based groups primary amine R-NH2 secondary amine R2NH tertiary amine R3N Ammonia NH3 quarternary amine a configuration in which nitrogen has four bonds with ot...

Chem 219 Unit 2; Questions and Answers 100% Solved hydrocarbons molecules composed only of the elements carbon and hydrogen What is the main source of hydrocarbons on earth? Fossil fuels - coal, petroleum, and natural gas What type of bonds make up hydrocarbons? carbon-to-carbon bonds Alkane...

Chem 219: Module 2 ; Questions and Answers 100% Solved What are hydrocarbons? Molecules composed of only the elements carbon and hydrogen What are the two major classes of hydrocarbons? Aromatic (benzene) and aliphatic (alkanes, alkenes, alkynes) What is the main source of hydrocarbons? Fos...

Chem 219 Final Exam with Complete Solutions Sublimation solid to gas Condensation Gas to liquid Evaporation Liquid to gas Deposition gas to solid The solubility of a gas in a liquid generally increases with lowering temperature and increases with increasing pressure ionization energy moves u...

CHEM 219 Exam 1 Questions and Answers 100% Solved mono 1 di 2 tri 3 tetra 4 penta 5 hexa 6 hepta 7 octa 8 nona 9 deca 10

Chem 219 Orgo Chapter 7;Questions and Answers 100% Solved What is a heterocycle? A cyclic compound which contains at least one other element that is not carbon or hydrogen What group composes the largest class of organic compounds? Heterocycles What are the most common heteroatoms? Oxygen, ni...

Chem 219 - Exam 1 Study Guide; Questions and Answers 100% Solved Valence number of bonds an atom is likely to form makes up the shell for LDD Follows the octet rule Main 8 groups of elements are satisfied with 4 pairs of 2 electrons; 8 total electrons Ionic Bonds Formed when one or more elec...

Chem 219 Unit 4; Questions and Answers 100% Solved What are the four halogen elements? F, Cl, Br, I organohalide compounds Organic molecules containing halogen atoms (F, Cl, Br, I) Examples of how organohalide compounds are used by humans - have been found in marine life (algae, mollusks, spo...

CHEM 219 Module 1 Exam with Complete Solutions organic chemistry the study of all chemicals containing carbon Catenation the process or preference of an element to bond with another atom of the same element Valence the number of bonds an atom will form to fill its outermost shell ionic bond ...

CHEM 219 Module 7; Questions and Answers 100% Solved Define Heterocyle as it applies to organic molecules. Cyclic molecules in which one or mroe carbon atoms are replaced by heteratoms - elements other than carbon or hydrogen. What are two main sub-groups of heterocyclic compounds? Aliphatic a...

Chem 219 Exam 1 with Complete Solutions On a piece of scratch paper, write out the Lewis Dot Diagram for each of the indicated elements and determine the following for each: a) The number of Lone Pairs the atom possesses in its valence shell. b) The number of Unpaired Electrons the atom possess...

CHEM 219 Module 8; Exam with Complete Solutions Polymer Large molecules made by repetitive linking of smaller units known as monomers. Poly Many Mono One Meros Part Name and describe the two main classifications of polymers. Natural or Synthetic. Natural Polymers Include rubber, carbohydra...

CHEM 219 EXAM 1 Organic Chemistry Module 3; Questions and Answers 100% Solved Stereochemistry the study of the three-dimensional structure of molecules Stereoisomers Compounds with the same structural formula and connectivity but with a different 3D arrangement of the atoms in space. Enantiom...