Chemistry

posted by .

how do you identify an anode and cathode by direct observation in an electochemical battery when you don't have a voltmeter and the chemicals are no known.

I look on the battery for a + and - sign. In a battery, the + pole is the cathode and the - pole is the anode.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Chemistry

    Sulfuric acid/ Lead Battery: -the electrodes for the battery are composed of Pb(s), PbO2, and/or PbSO4. What are the half reaction occuring at each electrode?
  2. Chemstry

    I just copied this because i have a couple more questions on this part.... Sulfuric acid/ Lead Battery: -the electrodes for the battery are composed of Pb(s), PbO2, and/or PbSO4. What are the half reaction occuring at each electrode?
  3. chemistry- DrBob

    Last week i did a lab and i just wanted to show you my results because my computer was acting weird when i used the voltage probe.(I just needed you to check that the cathode and anodes and voltages make sense) CuSO4(cathode)and Al2(SO4)3 …
  4. chemistry- DrBob

    summarize part a ( the data i showed you) in a data table containing heading: anode, cathode, overall cell reaction, and cell potential . for each cell combination, write the anode half reaction, the cathode half reaction, the overall …
  5. chemistry

    When setting up an electroplating system, how do you set up the terminals of the voltage source to the anode and cathode?
  6. ap

    A battery has two electrodes labeled anode and cathode. Electrons flow from the (anode, cathode) to the (anode, cathode) through the external circuit and (an oxidation, a reduc- tion) reaction occurs at the cathode. 1. anode; cathode; …
  7. Chemistry

    1. Which of the following metals is oxidized by calcium ions?
  8. Chemistry

    During the discharge of an alkaline battery, 4.50 g of Zn is consumed at the anode of the battery. a) What mass of MnO2 is reduced at the cathode during this discharge?
  9. chemistry: electrochemistry unit

    The red wire on a voltmeter is the cathode and the black is the anode. This would also give a positive reading on the voltmeter. How would I explain why this is?
  10. science

    Can somebody help me understand batteries?

More Similar Questions