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Chemistry 14 Online
OpenStudy (vera_ewing):

Is anyone good at chemistry?

OpenStudy (danjs):

You are vera

OpenStudy (hysusonic):

depends on the question

OpenStudy (vera_ewing):

Which reaction occurs at the anode of a lead-storage battery while it is in use to start a car? A. Pb + SO42− PbSO4 + 2e− B. PbSO4 + 2H2O 2e− + PbO2 + 4H+ + SO42− C. 2e− + PbO2 + 4H+ + SO42− PbSO4 + 2H2O D. PbSO4 + 2e− Pb + SO42−

OpenStudy (vera_ewing):

@hysusonic @DanJS Can you help me with that question? ^^

OpenStudy (danjs):

half reaction at the anode

OpenStudy (vera_ewing):

A. Pb + SO42− ---> PbSO4 + 2e− B. PbSO4 + 2H2O ---> 2e− + PbO2 + 4H+ + SO42− C. 2e− + PbO2 + 4H+ + SO42− ---> PbSO4 + 2H2O D. PbSO4 + 2e− ---> Pb + SO42−

OpenStudy (danjs):

what occurs there, oxidation or reduction, sorry been a few years since chem for me

OpenStudy (vera_ewing):

I think it's B

OpenStudy (danjs):

http://www.av8n.com/physics/lead-acid.htm

OpenStudy (danjs):

the answer is there

OpenStudy (vera_ewing):

@DanJS I can't find it! Is the answer B?

OpenStudy (vera_ewing):

@Zale101 pls help!!!!!

OpenStudy (vera_ewing):

@JFraser please help me!!!!

OpenStudy (danjs):

it is right there on that page...the - side....anode A

OpenStudy (vera_ewing):

thank you sooo much!!

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