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Chemistry
Duke
Hydrochloric acid (HCl) is combined with cesium hydroxide (CsOH) in a neutralization reaction. Which ions will combine to form a salt? Check all that apply.
H+
H3O+
Cl-
Cs+
OH-
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Chemistry
Kelly Velasquez
What is the name of Copper (I) and Chlorine?
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Chemistry
Leonardo Quinn
1. Consider the following reaction occurring in a closed chemical system. Assume that this reaction is at equilibrium and that in general the reaction to the right is favored.
CH3CH2OH + 3O2 2CO2 + 3H2O∆H = - 1,235 kJ/mol
•What type of chemical reaction is this?
•If more CH3CH2OH is added to the system, how will the reactions shift to reach equilibrium again?
•If water is extracted from the system, how will the reactions shift to reach equilibrium again?
•If heat is removed from the system, how will the reactions shift to reach equilibrium again?
•What is the name of the principle
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Chemistry
Salma Jacobson
What happens at the anode and the cathode of an electrochemical cell? Why do electrons flow from the anode to the cathode?
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Chemistry
Guest
How many grams are in 7.8 moles of NaCl?
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Chemistry
Muffin
In a 1.0 * 10-6 M solution of Ba (OH) 2 (aq) at 25 °C, identify the relative molar amounts of these species.
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Chemistry
Harley Parsons
Calculate the number of moles of kool aid powder needed to make 100ml of a 0.1 m solution? 0.1M=x mol C12H22O11/0.1L
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Chemistry
Yamilet Meadows
Chlorine has two naturally stable isotopes: 35Cl (34.968853 amu) and 37Cl (36.965903 amu). The natural abundance of each isotope varies in different regions of the universe. In the Gribble region of space, the molar mass for a sample of chlorine is 36.36575 g/mol. Using only these three values, determine the relative percent abundance of 35Cl.
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Chemistry
Kelly Michael
A fossilized animal that was killed by a volcanic eruption has 6.25 percent of its original amount of carbon-14 remaining; this radioisotope has a half-life of 5730 years. How long ago did the volcano erupt?
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Chemistry
Yukon
Would you expect the complex [Co (en) 3]Cl3 to have any unpaired electrons? Any isomers?
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Chemistry
Trace Castro
A 1.0 M H2S solution has a pH = 3.75 at equilibrium. What is the value of Ka?
A. 3.16 * 10-21
B. 3.16 * 10-8
C. 8.89 * 10-5
D. 8.89 * 10-8
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Chemistry
Bridge
A solution contains 72.0 g of HCl and 468 g of (C6H6). What is the mole fraction of benzene
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Chemistry
Matteo
When these bond to make ccl4, what is the shape of a ccl4 molecule? linear circular tetrahedral trigonal planar
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Chemistry
Edith Mcbride
If a what and a what is close enough they wil form a nova
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Chemistry
Paityn Oneal
Select the correct answer.
The average annual rainfall for Boston is 43.76 inches. One year, a weather station measured the city's actual rainfall to be 33.45 inches. From this data, what was Boston experiencing?
A.
drought
B.
blizzard
C.
cold wave
D.
hurricane
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