Why is helium not placed over beryllium on the periodic table

Someone, part 1: which compound does c represent? part 2: name a process that could release this compound into the air. part 3: explain how the elements that form it are conserved during the carbon cycle. use complete sentences to explain your answer. justify how this compound was created from a recycling of carbon in the carbon cycle. use complete sentences to explain your answer.

Determine the percent sulfuric acid by mass of a 1.61 m aqueous solution of h2so4. %

Write the chemical formula for a compound that is made of an element from group 1 and an element from group 17