Chemistry, 06.10.2020 20:01, Ezekielcassese
In order to determine the calories in a food sample, a chemist prepares their calorimeter with 100ml of water. The chemist took an initial temperature of 22 degrees celsius. After the food source burned the chemist then determined the the final temperature was 42 degrees celsius. What was the change of temperature of the water?
Answers: 3
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Mike and mitchell decide to have a foot race. they mark off a stretch of 100 yards, and recruit cindy to work the stopwatch. after running the race and looking at the results, cindy declared that mitchell was the fastest. so how did the boys times compare?
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Which substance can be broken down by chemical means
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Which of your 24 wells had indications that a chemical reaction occurred? how were you able to tell that a chemical reaction occurred? which of your 24 wells had indications that a physical reaction occurred? how were you able to tell that a physical reaction occurred? report on both mixing and evaporation. make a general statement about whether your hypotheses were validated or rejected. must your hypotheses be correct for this to be a successful laboratory?
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