1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

A couple chem questions

  1. Feb 17, 2009 #1
    Which of the following is a redox reaction?
    A. TiCl4(g) + 2 Mg(l) D Ti(s) + 2 MgCl2(l)
    B. NH3(g) + CO2(g) + H2O(l) NH4HCO3(aq)
    C. NaCl(s) + NaHSO4(s) D HCl(g) + Na2SO4(s)
    D. NaOH(aq) + H3PO4(aq) NaH2PO4(aq) + H2O(l)
    E. None of the above

    Is it A?

    Also another q.
    The primary reason for the nonexistence of NaCl2 is that:
    A. Cl has a low electron affinity.
    B. the Cl2
    – ion has been observed only as a ligand in coordination complexes of transition metal ions.
    C. NaCl2 would have very high lattice energy.
    D. the expected repulsion between the Cl atoms is strong.
    E. Na has a high second ionization energy.

    I'm leaning towards E...
     
  2. jcsd
  3. Feb 17, 2009 #2

    Borek

    User Avatar

    Staff: Mentor

    I would accept both answers, but that's me.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: A couple chem questions
  1. Chem question (Replies: 2)

  2. Chem Question (Replies: 5)

  3. Chem question (Replies: 7)

  4. Chem question (Replies: 1)

  5. Chem questions (Replies: 1)

Loading...