Difinition of homo sapiens

Chromosome 17 is made of over million base pairs.

What is conserved in the reaction shown below? h2(g) + cl2 (g) --> 2hcl(g)a. mass onlyb. mass and moles onlyc. mass, moles, and molecules onlyd. mass, moles, molecules, and volume

Ill give u brainliest pls how is mass of carbon conserved during cellular respiration