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Help ASAP with Chem hw? Will reward points to best answer...?
I am really confused on these two questions from my chemistry hw..i would really appreciate if you could help me and as a reward i will reward points to best answer...thnx..
1. Describe in general terms the structure of ionic solid such as NaCl. How are the ions packed in the crystals?
2. Why are cations always smaller than the atoms from which they are formed?
Thx!!
Atoms have a neutral charge, but when an electron departs the atom becomes a positive ion, a "cation". When an electron joins an atom, the result is a negative ion, an "anion".
Describe Na Cl?
The reaction to form salts and water is, in fact, one of the ways that acids and bases can be defined. In an aqueous solution, hydrochloric acid and sodium hydroxide react to form sodium chloride—which, though it is suspended in an aqueous solution, is still common table salt—along with water. The equation for this reaction is HCl(aq) + NaOH(aq) →H2O + NaCl(aq). In other words, the sodium (Na) ion in sodium hydroxide switches places with the hydrogen ion in hydrochloric acid, resulting in the creation of NaCl (salt) along with water.
As to teh crystaline structure see:
http://en.wikipedia.org/wiki/Sodium_chloride
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