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Chemistry

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

*potassium
zinc
iron
lead






2.
The first electrochemical cell was invented by ____.

Michael Faraday
*Alessandro Volta
James Maxwell
Benjamin Franklin






3.
Why can't a lead storage battery be recharged indefinitely?

A direct current must pass through the cells.
The electrodes lose lead sulfate.
*It is difficult to reverse the direction of current flow.
The electrolyte is too expensive.





4.
Which electrode (anode or cathode) is designated as positive in an electrolytic cell?

anode
*cathode
both
neither






5.
What is the direction of electron flow in an electrolytic cell?


from cathode to anode
*from anode to cathode
in either direction
There is no flow.






6.
What electrolyte can be used to electrolyze water?

hydrochloric acid only
sodium chloride only
sodium hydroxide only
*any electrolyte that is not easily reduced or oxidized






7.
The gas produced at the cathode in the electrolysis of brine is ____.

*hydroxide
chlorines
oxygen
hydrogen






8.
In electroplating, the object to be electroplated is placed _____.

*at the anode
at the cathode
at either the anode or the cathode
in between the anode and the cathode

Thank You.

  • Chemistry - ,

    I think you have some serious work to do. I disagree with 8,7, 5, 4, & 3.

  • Chemistry - ,

    you are right I think #3 is B...#4 is A and #5 is A...haven't done 7 and 8 yet...how am I doing?

  • Chemistry - ,

    #7 -D
    #8 -B...is that better?

  • Chemistry - ,

    I believe those are ok. I HOPE you were not confused by which of the opposite answer pairs to choose, you guessed, you guessed wrong the first time, and when I pointed them out you just chose the other one. As I say, I HOPE that isn't happening.

  • Chemistry - ,

    abbabddb

  • Chemistry - ,

    THESE ARE MOSTLY WRONG DO NOT USE BIG WRONG ANSWERS ME FAIL TEST :((((((((((((((

  • Chemistry - ,

    Dang it i failed. Why did you post this? YOUTE NOT HELPING ANYONE

  • Chemistry - ,

    A
    B
    B
    A
    B
    D
    D
    B

  • Chemistry - ,

    ^^ these are all correct, just took the quiz!

  • Chemistry - ,

    These are correct btw

  • Chemistry - ,

    unknown answers are correct.

  • Chemistry - ,

    Unknown is completely correct, i got 100. Thank you!

  • Chemistry - ,

    I just got a 100! unknown is correct! Thanks man!

  • Chemistry - ,

    thx ^^

  • Chemistry - ,

    Unknown is 100% correct! - 2017!!

  • Chemistry - ,

    thanks to gen and unknown! both were correct!

  • Chemistry - ,

    When unknown gets all the answers right
    *HAND FLIES TWARDS BUTTON LA BED "NUT"*

  • Chemistry - ,

    unknown 100% correct

  • Chemistry - ,

    Yes, Anon is correct! Answers good for honors chem electrolytic quiz

  • Chemistry - ,

    YYYYYYYEEEEEESSSSS. UNKNOWN IS 100. KEEP IT REAL MAN YOU THE GUY. SINCERLY D THE P THE MAN THE FARTSTER DILLLEBERRTOAN FARTASS!

  • Chemistry - ,

    thanks soo mush got 100%

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