Suggest a CHEMICAL TEST to test the presence of calcium of CaCO3(s)
2007-02-10 10:08:48 · 4 個解答 · 發問者 2003 2 in 科學 ➔ 化學
flame test係chemical test 咩?
2007-02-10 11:50:19 · update #1
flame test~
In a flame test, moisten a clean platinum wire with concentrated hydrochloric acid. Dip the wire into a crushed sample 即係CaCO3 of the salt to be tested.Heat strongly in a non-luminous flame. By oberving the colour of the flame at the wire, 如果出黎ge 係brick red ~ 咁即係有calcium 喇~
2007-02-10 11:00:04 · answer #1 · answered by ? 2 · 0⤊ 0⤋
Carry out a flame test with the sample (put the sample on an non-luminous Bunsen flame). If it gives a brick-red flame, the sample contains calcium.
2007-02-10 16:47:48 補充：
Carry out a flame test with the sample (put the sample on an non-luminous Bunsen flame). If it gives a brick-red flame, the sample contains calcium.
2007-02-10 11:46:08 · answer #2 · answered by Dogroutfish 2 · 0⤊ 0⤋
Flame Test
Burn the sample, if a brick-red flame is observed. This can prove that CaCo3 contain Calcium
2007-02-10 10:25:03 · answer #3 · answered by tsz yan 1 · 0⤊ 0⤋
By flame test, Calcium would give a brick red colour.
2007-02-10 10:20:29 · answer #4 · answered by ? 7 · 0⤊ 0⤋