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Topic Topic: Determining the formula of an ionic compound by electrolysis Post ReplyNew Question
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Joined: 26 June 2005
Posts: 918
Posted: 26 July 2005 at 4:20pm | IP Logged Quote System

When a quantity of electricity was passed through molten scandium oxide, 5.00g of scandium and 2.67g of oxygen were produced at the electrodes. What is the formula of scandium oxide? [Sc= 45, O=16]
    A.   ScO3
    B.   ScO
    C.   Sc2O3
    D.   Sc3O2
 QUIZ QUESTION #397 created by Tutor9195 on 25 July 2005 at 1:56am

Correct answer: C    Correct clicks: 61.47%  Wrong clicks: 38.53%
    A.   [15 clicks 13.76%] 
    B.   [15 clicks 13.76%] 
    C.   [67 clicks 61.47%] 
    D.   [12 clicks 11.01%] 
Please discuss this quiz question.
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