Asked by mina

A direct current is applied to a solution of CaBr^2, and a gas is evolved from one of the electrodes.
a. Is the gas involved at the anode or the cathode
b. What is the gas?

Answers

Answered by DrBob222
I am assuming this is an aqueous solution of CaBr2.
Hydrogen gas is evolved at the cathode (the negative electrode) and Br2 is evolved at the anode (the positive electrode).
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