Question

12. This is a chemical reaction for the decomposition of carbonic acid into water and
carbon dioxide.
H2CO3 → H2O + CO2

How does the reaction support the Law of Conservation of Mass?
Several molecules of water are produced.
The mass of carbon atoms is reduced during the reaction.
The mass of the atoms in the reactant equals the mass of the atoms in the products.
The mass of hydrogen atoms is the only thing that remains the same before and after the reaction

Answer 1

Original Question:
his is a chemical reaction for the decomposition of carbonic acid into water and
carbon dioxide.
H2CO3 → H2O + CO2
𝐇𝐨𝐰 𝐝𝐨𝐞𝐬 𝐭𝐡𝐞 𝐫𝐞𝐚𝐜𝐭𝐢𝐨𝐧 𝐬𝐮𝐩𝐩𝐨𝐫𝐭 𝐭𝐡𝐞 𝐋𝐚𝐰 𝐨𝐟 𝐂𝐨𝐧𝐬𝐞𝐫𝐯𝐚𝐭𝐢𝐨𝐧 𝐨𝐟 𝐌𝐚𝐬𝐬?

𝐗.)Several molecules of water are produced.
(𝘋𝘰𝘦𝘴𝘯'𝘵 𝘌𝘲𝘶𝘢𝘭 𝘵𝘩𝘦 𝘮𝘢𝘴𝘴, 𝘸𝘩𝘪𝘤𝘩 𝘮𝘢𝘬𝘦𝘴 𝘪𝘵 𝘸𝘳𝘰𝘯𝘨.)

𝐗.)The mass of carbon atoms is reduced during the reaction.
(𝘋𝘰𝘦𝘴𝘯'𝘵 𝘌𝘲𝘶𝘢𝘭 𝘵𝘩𝘦 𝘮𝘢𝘴𝘴, 𝘸𝘩𝘪𝘤𝘩 𝘮𝘢𝘬𝘦𝘴 𝘪𝘵 𝘸𝘳𝘰𝘯𝘨.)

𝐂.)The mass of the atoms in the reactant equals the mass of the atoms in the products.
(ℂ𝕠𝕣𝕣𝕖𝕔𝕥 𝕒𝕟𝕤𝕨𝕖𝕣 𝕒𝕤 𝕚𝕥 𝕖𝕢𝕦𝕒𝕝𝕤 𝕥𝕙𝕖 𝕞𝕒𝕤𝕤)

𝐗.)The mass of hydrogen atoms is the only thing that remains the same before and after the reaction.
(𝘋𝘰𝘦𝘴𝘯'𝘵 𝘌𝘲𝘶𝘢𝘭 𝘵𝘩𝘦 𝘮𝘢𝘴𝘴, 𝘸𝘩𝘪𝘤𝘩 𝘮𝘢𝘬𝘦𝘴 𝘪𝘵 𝘸𝘳𝘰𝘯𝘨.)

I hope that helps!
ℂ𝕣𝕖𝕖𝕕