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anonymous

  • one year ago

Referring to an activity series, which of the following combinations of reactants would not produce a successful single-replacement reaction? K + CaO Al + NiO Ca + Al2O3 Zn + BaO Please help!!

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  1. anonymous
    • one year ago
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    @phi

  2. anonymous
    • one year ago
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    Which of the following pairs does not share the same empirical formula? C2H6 and C4H12 C3H6O3 and C2H4O2 C3H8O and CH2O C2H6 and CH4? Chemistry ASAP

  3. anonymous
    • one year ago
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    I'll give medals anything just please help

  4. anonymous
    • one year ago
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    watch this http://study.com/academy/lesson/the-activity-series-predicting-products-of-single-displacement-reactions.html

  5. anonymous
    • one year ago
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    Okay so can we work through them? @richarddelfin

  6. anonymous
    • one year ago
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    @ricardodelfin

  7. anonymous
    • one year ago
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    I'm thinking D for the first question and D for the last question

  8. anonymous
    • one year ago
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    @abb0t

  9. anonymous
    • one year ago
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    @jagat2713 @photon336 @rvc

  10. anonymous
    • one year ago
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    @jagar2713

  11. anonymous
    • one year ago
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    Yes, your first question is D. Because Zn is less reactive than Ba. You can check it in the activity series list.

  12. anonymous
    • one year ago
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    And the second?

  13. anonymous
    • one year ago
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    So Zn will never replace Ba

  14. anonymous
    • one year ago
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    If 4.0 miles of X and 4.0 moles of Ay react according to the hypothetical reaction below, how many miles of the excess reactant will be left over at the end of the reaction? 2X + 3Y ==> Xsub2Y sub 3 1.3 y left over 2.7 y leftover 1.3 x left over 2.7 x left over I'm thinking C but I'm not sure

  15. anonymous
    • one year ago
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    In the second one you just have to simplify. a) C2H6 - C4H12 / They both come from the same empiric formula CH3 (see if i multiply CH3 by 2, i get the first formula and if do it by 4 i get the other one) b) C3H6O3 -C2H4O2 / Empiric formula for this pair is CH2O, 1st is multiplied by 3 and 2nd is multiplied by 2 Feel free to do the other one. Hint: U can't simplify 1 atom. Like i didnt keep reducing CH2O or CH3

  16. anonymous
    • one year ago
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    Ok so D does not reduce right?

  17. anonymous
    • one year ago
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    For #2

  18. anonymous
    • one year ago
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    I don't think you're even trying. About your third question Indeed, 1.3 moles of X are left over, and Y is the limiting reactant, because if you wanted to react 4 mol of X you would need 6 mol of Y, which you dont have.

  19. anonymous
    • one year ago
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    and i'd say there are 2 answers in #2, C and D

  20. anonymous
    • one year ago
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    See this is why I'm confused

  21. anonymous
    • one year ago
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    I'm Only allowed one

  22. anonymous
    • one year ago
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    Which one is the better choice

  23. anonymous
    • one year ago
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    @ricardodelfin

  24. anonymous
    • one year ago
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    Go for C, since they maybe made a mistake at D and typed C2H6 instead of C2H8.

  25. anonymous
    • one year ago
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    I'll double check let me see

  26. anonymous
    • one year ago
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    Your right! These are the choices. 1. C2H6 & C6H18 2. C3H6O3 & C2H4O2 3. C3H6 & CH4 4. CH2O & C3H6O3

  27. anonymous
    • one year ago
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    I'm leaning toward d again am I right? @ricardodelfin

  28. anonymous
    • one year ago
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    @nincompoop

  29. anonymous
    • one year ago
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    @ricardodelfin

  30. anonymous
    • one year ago
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    Please someone help with the second question I've been working on this exam since 8pm & this is my last question please help me w/ #2

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