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1.點解NaCI 會同 AgNO3 react
兩個唔係都stable的嗎?
點解會有reaction?

2.what type of reaction is it?
Is it displacement?

2007-01-11 15:12:54 · 1 個解答 · 發問者 2003 2 in 科學 化學

1 個解答

You are right that both NaCl and AgNO3 are stable. They will form soluble ions of Na+ and Cl- from NaCl and Ag+ and NO3- from AgNO3. However, when the chloride ion meet the silver ion, since they will form a salt with very low solubility (insoluble). So, white precipitate will be formed. This reaction is called precipitation reaction. It is a very important step in purification of silver.

2007-01-11 17:15:49 · answer #1 · answered by Po Hung 6 · 0 0

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