Explain whether the following chemical reactions can be represented by ionic equations. If yes,write its ionic equation and give the states of substances in the equation.
(a) Reaction between sodium chloride solution and silver nitrate solution
(b) Reaction between calcium carbonate and dilute hydrochloric acid
P.S. plz,,,用 Eng. 答! *= ]
2006-11-04 15:29:25 · 3 個解答 · 發問者 Sin Yan 3 in 科學 ➔ 化學
a) No, there is not a CHEMICAL reaction.
There is only the occurrence of precipitation, which is a PHYSICAL reaction.
NaCl (aq) + AgNO3 (aq) →NaNO3 (aq) + AgCl (s)
b) Yes
CaCO3 (s) + 2HCl (aq) → CaCl2 (s) + H2O (l)+ CO2 (g)
2006-11-04 16:58:05 · answer #1 · answered by Chan 1 · 0⤊ 0⤋
1. yes. ions are evolved, and some other new compounds are formed.
Ag+ + Cl- → AgCl (s)
2. yes. reason is same as above
CaCO3 + 2H+ → Ca2+ + CO2 + H2O
2006-11-04 19:00:09 · answer #2 · answered by 己式庚辛 7 · 0⤊ 0⤋
(a) yes.
sodium chloride solution(aq) + silver nitrate solution(aq) →
sodium nitrate solution(aq) + silver chloride solution(aq)
(b)yes.
calcium carbonate(s) + dilute hydrochloric acid(aq) →
calcium chloride(s) + carbonate(g) + hydrogen(g)
2006-11-04 15:46:35 · answer #3 · answered by Vincent Wong 7 · 0⤊ 0⤋