HARMAN UCR CHEM HARMAN FINAL REVIEW CH 1 8 PRACTICE Write the balanced

Harman ucr chem harman final review ch 1 8 practice

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UCR - GENERAL CHEMISTRY I - PROF. HARMAN UCR CHEM HARMAN FINAL REVIEW (CH. 1-8)* PRACTICE: Write the balanced molecular equation (ME) and net ionic equation (NIE) for the following reaction. Be sure to include the correct states in the final equation and charges for ions in the NIE. CuCl 2 (aq) + Pb(s) ME: NIE: * This review was not prepared by your professor or school and is neither approved nor endorsed by your college or university 36
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UCR - GENERAL CHEMISTRY I - PROF. HARMAN UCR CHEM HARMAN FINAL REVIEW (CH. 1-8)* PRACTICE: A gas is allowed to expand, at a constant temperature, from a volume of 1.0 L to 10.1 L against an external pressure of 0.50 atm. If the gas absorbs 250 J of heat from the surroundings, what are the values of q, w, and ΔE? SUMMARY: Exothermic & Endothermic Reactions * This review was not prepared by your professor or school and is neither approved nor endorsed by your college or university 37
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UCR - GENERAL CHEMISTRY I - PROF. HARMAN UCR CHEM HARMAN FINAL REVIEW (CH. 1-8)* PRACTICE: How many of the following processes require energy (absorbs heat)?I. Phase transition from solid to gasII. FreezingIII. Increasing the temperature of water from 20 °C to 30 °C at 1 atmIV. Melting ice A) 0 B) 1 C) 2 D) 3 E) 4 PRACTICE:How many of the following processes would be exothermic (ΔH < 0)? HCl (g) H (g) + Cl (g) Br (g) + Br (g) Br 2 (g) KI (s) K + (g) + l - (g) CO 2 (g) CO (g) + O (g) a. 0 b. 1 c. 2 d. 3 e. 4 * This review was not prepared by your professor or school and is neither approved nor endorsed by your college or university 38
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UCR - GENERAL CHEMISTRY I - PROF. HARMAN UCR CHEM HARMAN FINAL REVIEW (CH. 1-8)* PRACTICE: When solid ice, H 2 O(s), undergoes fusion a) The process is endothermic and heat is absorbed from the surroundings. b) The process is endothermic and heat is released to the surroundings. c) The process is exothermic and heat is released to the surroundings. d) The process is exothermic and heat is absorbed from the surroundings. * This review was not prepared by your professor or school and is neither approved nor endorsed by your college or university 39
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UCR - GENERAL CHEMISTRY I - PROF. HARMAN UCR CHEM HARMAN FINAL REVIEW (CH. 1-8)* PRACTICE: A 19.78 g piece of nickel (specific heat of nickel = 0.444 J/g o C) was heated to 103.5 o C and then plunged into a beaker containing 87.9 grams of water at 14.7 o C. Determine the final temperature of the metal after the system attains thermal equilibrium. (the specific heat of water is 4.184 J/g o C) A. 59.1 o C B. 44.4 o C C. 16.8 o C D. 12.5 o C E. 55.6 o C * This review was not prepared by your professor or school and is neither approved nor endorsed by your college or university 40
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UCR - GENERAL CHEMISTRY I - PROF. HARMAN UCR CHEM HARMAN FINAL REVIEW (CH. 1-8)* PRACTICE: A 100.0 mL sample of 0.200 M aqueous hydrochloric acid is added to 100.0 mL of 0.200 M aqueous ammonia in a calorimeter whose heat capacity is negligible. The following reaction occurs when the two solutions are mixed.
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