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12) (10 pts Complete the following oxidation-reduction reaction and for non- 3 each reactant and productprotiaas, ligura o gas (g) or aqueous (aq). Zn(s) + Cu2+ (aq) (1) that was discussed in class and is in your textbook. Do not explain how to 13) (10 pts) Write down the precipitation reaction containing a silver Agt ion carry out the reaction, simple write down the chemical reaction with an arrow included. Your reaction must involve only ions reacting and include the appropriate phase of each reactant and product solid (s), liquid (1), gas (7) or aqueous (aq). 14) (10 pts) Draw a picture of the Is and 2s orbitals. Make a two dimensional representation of the orbitals and include a dot for the nucleus. Label them as "18" and "2s." 15) [10 pts) Balance the chemical reaction below. In your final answer, have only integers. ("Clear" any fractions.) Al(s) + 02 A1,03(s) (2) 16) (10 pts) Calculate the photon energy for a photon from a laser with a frequency of 1.51 x 1015 sec-1 Show your work with appropriate units to receive credit. 17) (5 pts) Write the following numbers in scientific notation so that the "lead- ing number" is between 1.00 and 9.99. The first one is an example. 2320 = 2.32 x 103 99,000,000 ;0.004080 -