?

General Chemistry

Free Version

Upgrade subject to access all content

Easy

Acid Reflux and Calcium Carbonate

CHEM-ODF6LW

Chewing and swallowing inexpensive OTC calcium carbonate tablets can help relieve symptoms of stomach upset due to acid reflux (heartburn).

Which of the following is the CORRECT net ionic equation that can explain its effectiveness?

A

${CaCO }_{ 3 }(s)\space +\space 2HCl(aq)\space \longrightarrow \space {CaCl }_{ 2 }(aq)\space +\space { H }_{ 2 }O(l)\space +\space C{ O }_{ 2 }(g)$

B

${{ CO }_{ 3 }}^{ 2- }(aq)\space +\space 2{ H }^{ + }(aq)\space \longrightarrow \space { H }_{ 2 }O(l)\space +\space C{ O }_{ 2 }(g)$

C

${CaCO }_{ 3 }(s)\space +\space 2{ H }^{ + }(aq)\space \longrightarrow \space { Ca }^{ 2+ }(aq)\space +\space { H }_{ 2 }O(l)\space +\space C{ O }_{ 2 }(g)$

D

${{ HCO }_{ 3 }}^{ - }(aq)\space +\space { H }^{ + }(aq)\space \longrightarrow \space { H }_{ 2 }O(l)\space +\space C{ O }_{ 2 }(g)$