New Horizons

Welcome to New Horizons-A forum for all different kinds of discussions. Please Log in or Register to Post!


    Balancing Equations Quiz

    Share
    avatar
    Ahmed
    NH Admin
    NH Admin

    Number of posts : 51452
    Username Change Points : 58444
    Reputation : 147
    Registration date : 2007-10-14
    Mood :
    Country : Egypt

    Balancing Equations Quiz

    Post by Ahmed on Mon Jan 19, 2009 5:43 pm

    Could anyone post sites that ahve quizzes or questions of balancing equations in chemistry?

    P.S.: I already know these two: http://gemini.tntech.edu/~snorthrup/chem111/tutorials/CHAP3/start.html and richardbowles.tripod.com/chemistry/balance.htm


    _________________
    avatar
    Hassan
    NH Retired Moderator
    NH Retired Moderator

    Number of posts : 6555
    Username Change Points : 7924
    Reputation : 20
    Registration date : 2007-10-23
    Mood :
    Country : Pakistan

    Re: Balancing Equations Quiz

    Post by Hassan on Mon Jan 19, 2009 5:45 pm

    How about this: http://funbasedlearning.com/chemistry/chembalancer/default.htm


    _________________
    KEEP IT GOING
    avatar
    Ahmed
    NH Admin
    NH Admin

    Number of posts : 51452
    Username Change Points : 58444
    Reputation : 147
    Registration date : 2007-10-14
    Mood :
    Country : Egypt

    Re: Balancing Equations Quiz

    Post by Ahmed on Mon Jan 19, 2009 5:58 pm

    Thats a game...anything else Please Smile


    _________________
    avatar
    Doc
    NH Member
    NH Member

    Number of posts : 15155
    Username Change Points : 12673
    Reputation : 133
    Registration date : 2007-10-25
    Mood :
    Country : Pakistan

    Re: Balancing Equations Quiz

    Post by Doc on Mon Jan 19, 2009 6:43 pm

    Here are a few easy questions from my old chem book:

    Na2S(aq) + Cu(NO3)2(aq) -> NaNO3(aq) + CuS(s)

    HCL(aq) + O2(g) -> H2O(l) + Cl2(g)

    Co(NO3)3(aq) + (NH4)2S(aq) -> Co2S3(s) + NH4NO3(aq)

    Hg2(C2H3O2)2(aq) + KCL(aq) -> Hg2Cl2(s) + KC2H3O2(aq)

    C6H12O6(aq) + O2(g) -> CO2(g) + H2O(l) (this one is for cellular respiration Wink )
    avatar
    Ahmed
    NH Admin
    NH Admin

    Number of posts : 51452
    Username Change Points : 58444
    Reputation : 147
    Registration date : 2007-10-14
    Mood :
    Country : Egypt

    Re: Balancing Equations Quiz

    Post by Ahmed on Mon Jan 19, 2009 7:08 pm

    I don't need to use the (s), (l), (g) and (aq) BTW

    Na2S + Cu(NO3)2 -> Na(NO3) + CuS

    2Na2S + 2Cu(NO3)2 -> 4Na(NO3) + 2CuS
    =============================================
    HCl + O2 -> H2O + Cl2

    4HCl + O2 -> 2H2O + 2Cl2
    =============================================
    Co(NO3)3 + (NH4)2S -> Co2S3 + (NH4)(NO3)

    2Co(NO3)3 + 3(NH4)2S -> Co2S3 + 6(NH4)(NO3)
    =============================================
    Ok!! Lol, I don't think she'll go mad and give me a question like that..have the class (I used to, tll today) be confused Razz

    Did I get the first 3 correct?


    _________________
    avatar
    Doc
    NH Member
    NH Member

    Number of posts : 15155
    Username Change Points : 12673
    Reputation : 133
    Registration date : 2007-10-25
    Mood :
    Country : Pakistan

    Re: Balancing Equations Quiz

    Post by Doc on Mon Jan 19, 2009 9:49 pm

    lol the book answer for the first one is Na2S + Cu(NO3)2 -> 2NaNO3 + CuS ... which is basically the reduced (empirical? O.o) form of
    2Na2S + 2Cu(NO3)2 -> 4Na(NO3) + 2CuS but which ever one you prefer of course Rolling Eyes

    Here are the answers for the ones you were too lazy to do :p

    ________________________
    Hg2(C2H3O2)2(aq) + KCL(aq) -> Hg2Cl2(s) + KC2H3O2(aq)

    Hg2(C2H3O2)2(aq) + 2KCL(aq) -> Hg2Cl2(s) + 2KC2H3O2(aq)

    ------------------------------------------------------------------------

    C6H12O6(aq) + O2(g) -> CO2(g) + H2O(l)

    C6H12O6(aq) + 6O2(g) -> 6CO2(g) + 6H2O(l)


    I hope she goes nuts BTW and gives you some real crazy ones Very Happy
    avatar
    Ahmed
    NH Admin
    NH Admin

    Number of posts : 51452
    Username Change Points : 58444
    Reputation : 147
    Registration date : 2007-10-14
    Mood :
    Country : Egypt

    Re: Balancing Equations Quiz

    Post by Ahmed on Mon Jan 19, 2009 10:00 pm

    Curse you!! If she does, you'll be banned for the 4th time lol!


    _________________

    Sponsored content

    Re: Balancing Equations Quiz

    Post by Sponsored content


      Current date/time is Fri Jul 21, 2017 1:48 pm