1) oxidation means: a) losing electrons b) gaining electrons 2) oxidation takes place at a) cathode b) anode c) salt bridge 3) electrons flow from a) cathode to anode b) anode to cathode 4) the mass of the strip at the anode: a) decreases b) increases 5) At oxidation: a) Mg is oxidized into Mg2+ b) Mg2+ is reduced to Mg c) Mg2+ is oxidized to Mg 6) Indicate the nature of the cation X2+ in solution (A). a) Zn2+ b) Zn c) Cu2+ d) Cu 7) nitrate ions (NO3-) move toward: a) solution A b) solution B 8) current flows from a) anode to cathode b) cathode to anode 9) electrochemical cell converts a) chemical energy to electrical energy b) elctrical energy to chemical energy 10) The two solutions are connected by a a) voltmeter b) lamp c) salt bridge d) connecting wires 11) the two strips are connected by: a) vlotmeter or lamp b) salt bridge 12) change this equation into a statement: a) Cu2+ undergoes reduction. b) Cu2+ undergoes oxidation. 13) The cations (K+) of salt bridge move to: a) Zn b) Cu 14) if we remove the salt bridge; the circuit will a) remain closed b) be open circuit. 15) if we remove the salt bridge, the lamp will a) Turn off  b) keep shining 16) the salt bridge achieves electroneutrality. a) true b) false 17) if Cu is the anode.. the cathode is: a) Ag b) Fe c) Zn 18) if the voltage of (Zn-Fe) is 0.14V, the voltage of (Zn-Cu) is a) 0.02V b) 0.14V c) 0.70V 19) As the difference between the tendency to lose electrons increases, a) The voltage decreases b) the voltage remains the same c) the voltage increases 20) Since the cations of salt bridge are moving to Al, then Al is  a) Cathode b) Anode 21) Al here, a) loses electrons b) gains electrons 22) the mass of Al strip changes from: a) 3g to 3.4g (increases) b) 3.4g to 3g (decreases) 23) the concentration of Al3+ ions in the solution a) increases b) decreases 24) the color of Al3+ solution, a) becomes darker b) becomes lighter (fade) 25) electrons move from a) Al to Mg b) Mg to Al 26) Mg has …….. tendency to lose electrons than Al. a) more b) equal c) less 27) choose the correct axis: a) b) 28) your favorite teacher on Earth: a) jinan tab3an b) israel 29) reducing agent undergoes a) oxidation b) reduction

Galvanic Cell

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