Chemistry, 17.12.2020 01:00 ravenjade2395
Janelle placed a thermometer in the plastic bag in her oven, and Corey placed a thermometer underneath the plastic
wrap in his oven. They placed their ovens out in the Sun for one hour. At the eníd of the hour, they recorded the
temperature in each oven.
Solar Oven
janelle's cone oven
I OVen
Corey's shoe box oven
Final Temperature ('F)
148
112
Identify the design that worked better. Was your prediction correct? Why do you think this design got hotter than the
other?
Answers: 1
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Calculate the enthalpy of the following reaction: 4 b (s) + 3 o2 (g) → 2 b2o3 (s) given the following pertinent information: (a) b2o3 (s) + 3 h2o (g) → 3 o2 (g) + b2h6 (g), δhoa = +2035 kj (b) 2 b (s) + 3 h2 (g) → b2h6 (g), δhob = +36 kj (c) h2 (g) + latex: \frac{1}{2} 1 2 o2 (g) → h2o (l), δhoc = −285 kj (d) h2o (l) → h2o (g), δhod = +44 kj
Answers: 3
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Which states of matter have particles that move independently of one another with very little attraction?
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