The solubility of a slightly soluble salt is decreased by the presence of a second solute that provides a common ion to the system.
Indicate whether the statement is true or false
Question 2
What is expected when the reaction shown below takes place in a thermally-insulated container outfitted with a movable piston at a constant atmospheric pressure of 1 atm? 2 C2H6(g) + 7 O2(g) 4 CO2(g) + 6 H2O(g)
A) Volume will decrease and work will be done by the system.
B) Volume will decrease and work will be done on the system.
C) Volume will increase and work will be done by the system.
D) Volume will increase and work will be done on the system.
Question 3
What is the frequency (s-1 ) of electromagnetic radiation that has a wavelength of 2.3 m?
A) 1.3 108 s-1
B) 1.8 10-9 s-1
C) 1.6 108 s-1
D) 1.3 10-33 s-1
E) 1.3 1033 s-1
Salt and water balance in water-breathers.
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