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Chemistry, 06.05.2020 07:13 maddy3lizabeth
A student makes a saturated sugar solution by dissolving sugar grains in warm water, stirring, and adding more sugar until it no
longer dissolves. The student then allows the solution to come to room temperature. The student pours equal volumes of the sugar
solution into five beakers. The student places a string into each of the beakers, with one end of the string hanging free outside of
the glassware. The student then places the beakers into five chambers of varying temperature (5, 10, 15, 20, and 25 degrees
Celsius). The student allows the beaker and string to sit for two weeks. At the end of the experiment, the student notices crystals
have formed in the string. The student masses the amount of crystals that have formed from the sugar solution on the string.
Select the dependent variable in this experiment and what process in the rock cycle is the student most likely modeling?
A-The dependent variable is the level of crystal formation and the student is
modeling the formation of igneous rock from magma.
B-The dependent variable is the level of crystal formation and the student is
modeling the melting of metamorphic rock to form magma.
C-The dependent variable is the temperature at which crystals form and the
student is modeling the formation of igneous rock from magma.
D-The dependent variable is the temperature at which crystals form and the
student is modeling the melting of metamorphic rock to form magma.
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Answers: 1
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Chemistry, 22.06.2019 21:20
Phosgene (carbonyl chloride), cocl2, is an extremely toxic gas that is used in manufacturing certain dyes and plastics. phosgene can be produced by reacting carbon monoxide and chlorine gas at high temperatures: co(g) cl2(g)⇌cocl2(g) carbon monoxide and chlorine gas are allowed to react in a sealed vessel at 477 ∘c . at equilibrium, the concentrations were measured and the following results obtained: gas partial pressure (atm) co 0.830 cl2 1.30 cocl2 0.220 what is the equilibrium constant, kp, of this reaction
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A student makes a saturated sugar solution by dissolving sugar grains in warm water, stirring, and a...
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