When the corals and mollusks die, layers of their skeletons and shells form on the ocean floor. As the layers are buried by sediments, they compact and cement to form
limestone, which is a sedimentary rock made of calcium carbonate (Cacos)
There is one carbon atom and one hydrogen atom in the reactants for every three
carbon atoms and three hydrogen atoms in the products
There are two carbon atoms and two oxygen atoms in the reactants for every three
carbon atoms and three oxygen atoms in the products Option 4
There are three oxygen atoms in the reactants for every three oxygen atoms in the
products
There is one hydrogen atom in the reactants for every two hydrogen atoms in the
products