If compound A consists 3.45 g of carbon and 12.34 g of oxygen what is the ratio carbon to oxygen?

What is a scientific theory? a. a scientist's guess about how something works b. the results of an experiment obtained using the scientific method c. a proven fact that will never change d. an idea that is backed by data from many sources

Matches the chemical name of each oxide of phosphorus to its chemical formula

Can you guys answer these questions i need it before 1: 00pm