?

AP® Chemistry

Free Version

Upgrade subject to access all content

Moderate

Calcium Carbonate Precipitation Reaction

APCHEM-HQT55E

A student added 2 mL of 0.1 M $CaCl_2$ to 2 mL of 0.1 M $Na_2CO_3$ in a test tube. He observed a white precipitate form.

Which of the following is the identity of the precipitate?

A

$CaCl_2$

B

$Na_2CO_3$

C

$NaCl$

D

$CaCO_3$