sem 2 exam rev thermo-nuclear

We probably will not cover : thermochemistry, nuclear chemistry, organic chemistry this year, so don't do that part of the review. I will probably remove that part and replace with multiple choice from topics we have covered.

THERMOCHEMISTRY – HEAT PROBLEMS: *show work

When 90g Cu was taken from a pot of boiling water and placed into 95mL of water at 20 degrees C, the temperature went to 25.2 degrees C.What was the final temperature of the metal? What was the change in temp of the metal?What was the change in temp of the water?What mass of water was used?*How much heat did the water gain?*What is the experimental Cp of the Cu? What is the actual Cp of the Cu? *What is the % error? What type of change in this lab? Evidence? Peanut lab: A cashew with a mass of 0.66g was burned, causing 94mL of water in the calorimeter to go from 19 degrees C to 52 degrees C. What was the change in temp of the water?*How much heat did the water gain?How much heat did the cashew lose? *How many calories/gram in the cashew? *The can says 28.2g serving has 180 Calories, what is the actual cal/g? *What is the percent error? Why was the actual greater than the experimental?

What type of change? Why?

organic chemistry: choose from methane, butane, propane, methanol, propanol, ethanol, & propene for the following: 4 carbons, 3 carbons, in lighters, in Bunsen burners, fermented from fruits and grains, simplest alcohol, rubbing alcohol, gas grills, natural gas : Write Structural formulas for all the compounds above.

------------ choose from these: saturated fat, unsaturated fat, esters for the following: single bonds, least healthy, fragrance and flavor, solid, vegetable oil, unsaturated fat + hydrogen, acid + alcohol

nuclear chemistry: choose from fission, fusion, both, neither for the following:

heavy element split, matter converted into energy, by products include radon, desired as future energy source, lighter elements combined, requires high temp, first nuclear bombs, occurs on the sun, requires critical mass, a lot of radioactivity, nucleus not involved, involves protons and neutrons