The dictionary from #2 falls off the table. How much kinetic energy does it have just before it hits the floor?

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.

Find the mass, in grams, of 5.00*10^23 molecules of f2

What is the percentage of hydrogen in c2h4