Illustrate how an electron can be given energy

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Reference no: EM133195223 , Length: Word count: 2 Pages

Question 1: For the 4 elements that make up the bulk of your mass plus Mg and Cl (these two typically appear in ionic form!) draw and label an atom of each in its i) most common isotope, ii) another isotope and iii) as an ion. For its standard form (i) illustrate its valence shell and possible covalent bonds. Include all 3 subatomic particles.

Question 2: Using the list above build possible chemically 'satisfied' molecules that illustrate a i) non-polar covalent bond, ii) polar covalent bond, iii) ionic bond and iv) a hydrogen bond. Explain why each bond forms and what its characteristics are.

Question 3: Illustrate how an electron can be given energy and what happens to it, how it can give up energy and what happens to it.

Question 4: Explain what is happening when something dissolves in water, how it is kept in solution, how a crystal can be dissolved and what is happening when a solution is saturated.

Question 5: Recreate the pH scale with appropriate labels including at least 3 different measures of H+ and OH- concentrations on that scale. Illustrate 3 different pH changes of different absolute values and signs (pH3 -> pH5, etc.) stating how much H+ and OH- concentrations change.

Question 6: Give an example of an organic molecule.

Question 7: Give 3 distinctly different possible carbon skeletons (isomers) with the same number of carbon atoms.

a. Complete one of these carbon skeletons as a pure hydrocarbon with all valence chemistry satisfied.

b. Convert one of these molecules by replacing a single C-C bond with a double bond.

c. Convert one of these molecule into a partially water soluble molecule.

Question 8: Draw and clearly label a monomer and a dimer (string of two monomers, the shortest polymer possible) for a carbohydrate, an amino acid and a nucleic acid. Explain why a lipid cannot be treated this way.

Reference no: EM133195223

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