3. Raul wanted to see if Jiffy Pop or Von's brand popcorn left fewer
unpopped kernels. He pour...
Chemistry, 06.05.2020 15:02 abigailcayton
3. Raul wanted to see if Jiffy Pop or Von's brand popcorn left fewer
unpopped kernels. He poured some of each type of popcorn into two
different types of pans containing oil. He popped the corn for three
minutes each. He then recorded the number of unpopped kernels in
each pan.
a. What were Raul's variables?
b. What were Raul's controls?
c. List two parts to Raul's experimental design that were planned correctly.
d. How might Raul have improved his experir
design?
Answers: 1
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Chlorine and water react to form hydrogen chloride and oxygen, like this: 2cl2 (g) + 2h2o (g) → 4hcl (g) + o2 (g) also, a chemist finds that at a certain temperature the equilibrium mixture of chlorine, water, hydrogen chloride, and oxygen has the following composition: compound concentration at equilibrium cl2 0.55m h2o 0.57m hcl 0.53m o2 0.34m calculate the value of the equilibrium constant kc for this reaction. round your answer to 2 significant digits.
Answers: 2
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Match the following items. match the items in the left column to the items in the right column. 1. 1/1,000 precision 2. uncertainty value of measurement milli- 3. 1,000 accuracy 4. instrument to measure volume balance 5. degree of exactness of a measurement centi- 6. instrument to measure mass graduated cylinder 7. correctness of a measurement ± value 8. 1/100 kilo-
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