posted by .

why is this statement false?
"when an ionic compound dissolves in water an equal number of positive and negative ions is created."

  • chemistry -

    It is true than an equal number of positive and negative CHARGES are formed but that isn't the same as the number of positive and negative ions. For example,
    NaCl ==> Na^+ + Cl^-.
    1 mole NaCl dissociates, 1 mole Na^+ and 1 mole Cl^- are formed AND 1 mole of + and 1 mole of - negative charges are formed. BUT, when dissociates as in
    MgCl2 --> Mg^2+ + 2Cl^-
    then you see that we have 1 mole of 2+ charges and 2 moles of 1- charges so the charges are equal; however, we have 1 mole Mg^2+ and 2 moles Cl^-. Again, the charges are equal but the number of + and - ions are not the same.

  • chemistry -

    so then how would you make the statement true?

  • chemistry -

    Read my post again. I told you twice how to make it true.

  • chemistry -

    oh sorrry.....i got it.
    when an ionic compound dissolves in water an equal number of positive and negative charges are created.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. chemistry

    Criticize the following statements. 1. In an ionic compound, the number of cations is always equal to the number of anions. [Is it ok to say 'not always'?
  2. Chemistry (CHEM)

    Can someone explain the electrical conductivity of melted and of aqueous solutions of ionic compounds. An explain it using the characteristics of ionic compounds. ThankS A Whole lot.. In Advance I suggest you go to the site recommended …
  3. chemistry

    I have two Questions I need help with. 1. Why do some combinations of ionic compounds form a precipitate while other ionic compounds don't?
  4. Chemistry

    When an ionic compound dissolves in water, splitting into its respective ions, the positive ions will be attracted to the _________ end of the water molecule. A. neutral B. partially positive C. partially negative
  5. Chemistry

    Sea water conducts electricity. Which statements give the best explanation for this a) Ions are able to move around in sea water b) Electrons can pass from ion to ion in the sea water c) The sea water contains more ions with positve …
  6. chemistry

    Write the formula of the ionic compound that forms between a. copper(I) ions and chloride ions---CuCl b. copper(II) ions and hydrogen sulfate ions--Cu(HSO4)2 c. lithium ions and iodide ions--LiI d. cobalt(III) ions and phosphate ions---CoPO4
  7. Chemistry

    Assume that the ionic compound CaCl2, separates completely into Ca and Cl ions when it dissolves in water. How many moles of each ion are present in the solution?
  8. Chemistry

    So I am trying to understand in molecular terms the solubility of NaCl in water. So there are intramolecular forces that are mostly ionic between the ions, creating this partial positive, partial negative substance. And the intermolecular …
  9. chemistry

    To dissolve an ionic solid in water, you must first disrupt the ionic bonds that are holding the ionic lattice together. This is an endothermic process, yet many ionic solids have an exothermic heat of solution. (Heat is released when …
  10. Chemistry

    An ionic compound dissolved in water, separated into its ions according to the following equation: MA2 (s)--> M^+2 (aq) + 2A^- (aq). If the ground state electron configuration of the two ions are similar to those of neon. Ne, and …

More Similar Questions