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1. A 10.0 chunk of zinc at 100.0 ºC is dropped into a 100 grams of...

1. A 10.0 chunk of zinc at 100.0 ºC is dropped into a 100 grams of water at 5 ºC. What is the final temperature in Celcius of the water? [Report to three sig figs with no until label.]

2. Calculate the enthalpy for the reaction below at standard conditions using Appendix G in your textbook. [Report the answer to three sig fig, without unit labels, and using +/- signs to indicate if the reaction is endo- or exothermic.]

2 Al(s) + Fe2O3(s) --> Al2O3(s) + 2 Fe(s)

3. How many Joules is needed to raise the temperature of 8.16 grams of aluminum from 25.0º to 34.0ºC ? [Report to 3 sig figs. Do not put in unit label.]

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