VVV Electrolysis

You practice given ELECTROLYSIS propositions, indicate whether they are true (V) or false (F). Electrolysis is the transformation of electrical energy into chemical energy. Through electrolysis, chemical compounds may decompose into simpler substances. Direct current is used in the electrolysis. A) FFF B) VFF C) VFV D) VVF E) VVV with respect to elements of the electrolysis, indicate the propositions which are correct: electrolytes are molten or dissolved in water polar Covalent or Ionic substances. The electrodes are always inert.

The current flows from the cathode to the anode. A.) Only I B) only II C) I and III D) I, II and III E) II and III pointing the incorrect assertion regarding the electrolysis of water. A) diluted acidulated water is decomposed into hydrogen and oxygen gas. (B) in the cathode, hydrogen gas is collected. (C) the anode contains gaseous oxygen. (D) the volume of gaseous oxygen is twice the volume of hydrogen gas. (E) corresponds to a reaction of oxide reduction.

Electrolysis is a process where: not spontaneous redox reactions are developed. The current is routed from the anode to the cathode. Some electrodes are active and are consumed while it lasts the phenomenon. A) only I B) only II C) only III D) I and II E) I, II and III what mass, in grams, oxygen is released into the anode if 5 faraday of load are used? A) 24 B) 16 C) 30 D) 36 E) 40 what volume, under normal conditions, hydrogen is released at the cathode if a load of 10 faraday is used? A) 11.2 L B) (112 C) 56 D) 224 E) 22.4 through an electrolyte solution containing (Cu+2) spend 5 moles of electrons. What mass of copper is deposited at the cathode? (m.A. Cu = 64) A) 160 g B) 80 C) 64 D) 320 E) 240 points to propositions that are correct.

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