CHEM 101 Midterm: CHEM 101 Drexel CHEM 101 Exam 1 Fall 2009 with answer key
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On the answer sheet (scantron) write your name, student id number, and recitation section number. Choose the best (most correct) answer for each question and enter it on your answer sheet. Speed of light: c = 3. 00 x 108 m/s. Planck constant: h = 6. 626 x 10-34 j s. This is an example of: the law of conservation of mass, dalton"s atomic theory, the law of constant composition, the law of multiple proportions, the law of conservation of energy. 3+ + po4: nah2, na+ + 2h+ + p + 4o2, na+ + h2 + p + 2o2, na+ + h2po4, na+ + h+ + p + o4. 2 na(s) + 2 h2o(l) 2 naoh(aq) + h2(g: 92. 0 g, 5. 75 g, 11. 5 g, 23. 0 g, 46. 0 g, classify the following reaction. 2 al(s) + 3 cuso4(aq) al2(so4)3(aq) + 3 cu(s: combination, decomposition, combustion, dissolution, displacement.
