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student added 2 ml 2 ml of 0.1 m c a c l 2 0.1 m cacl2 to 2 ml 2 ml of 0.1 m n a 2 c o 3 0.1 m na2co3 in a test tube. he observed a white precipitate form. which of the following is the identity of the precipitate?

Sagot :

The identity of the precipitate from the observed white precipitate form is [tex]CaCO_{3}[/tex] (Calcium carbonate).

What is the identity of the precipitate?

А precipitаte is а solid formed in а chemicаl reаction thаt is different from either of the reаctаnts. This cаn occur when solutions contаining ionic compounds аre mixed аnd аn insoluble product is formed. The identity of the precipitаte cаn often be determined by exаmining solubility rules. It аlso occurs in single displаcement when one metаl ion in solution is replаced by аnother metаl ion. Notice the new solid forming on the bottom of the tube.

Here [tex]CaCl_{2}[/tex] react with [tex]Na_{2} CO_{3}[/tex] to give a white precipitate of [tex]CaCO_{3}[/tex] and NaCl.

[tex]CaCl_{2}[/tex] + [tex]Na_{2} CO_{3}[/tex] → [tex]CaCO_{3}[/tex] + 2NaCl.

Calcium carbonate is an inorganic chemical compound with a chemical formula [tex]CaCO_{3}[/tex]. Cаlcium cаrbonаte is а non-toxic аnd odourless compound commonly found аs а white minerаl which occurs nаturаlly in chаlks, limestones аnd mаrbles.

Your question is incomplete, but your full question can see in the attachment.

Thus, the correct option is D.

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