A major source of chlorine gas, Cl2, is from the electrolysis of brine, which is concentrated salt water, Which of the following is the balanced chemical reaction for this electrolysis reaction?
A. 2 NaCl (aq) + H2O ? 2 NaH (aq) + Cl2O (aq)
B. 2 NaCl (aq) + 2 H2O ? 2 Na (s) + O2 (g) + 2 H2 (g) + Cl2 (g)
C. 2 NaCl (aq) + H2O ? Na2O (aq) + 2 HCl (aq)
D. 2 NaCl (aq) + 2 H2O ? 2 NaOH (aq) + Cl2 (g) + 2 H2 (g)
Ans: D. 2 NaCl (aq) + 2 H2O ? 2 NaOH (aq) + Cl2 (g) + 2 H2 (g)
You might also like to view...
The Phoenix lander on Mars failed to confirm the presence of water ice under the surface
Indicate whether the statement is true or false
What is the speed of a proton that has been accelerated from rest through a potential difference of 4.0 kV?
a. 1.1 × 10^6 m/s b. 9.8 × 10^5 m/s c. 8.8 × 10^5 m/s d. 1.2 × 10^6 m/s e. 6.2 × 10^5 m/s
A long wire carrying a 2.0-A current is placed along the y-axis. What is the magnitude of the magnetic field at a point that is 0.60 m from the origin along the x-axis? (?0 = 4? × 10-7 T ? m/A)
A) 6.7 T B) 0.67 µT C) 0.12 µT D) 1.3 µT E) 12 T
Which has the greater specific heat capacity; the filling of a hot piece of pie or the crust?
A) the filling B) the crust C) depends on the temperature