Filtration, decantation, and evaporation are examples of

ways in which scientists distinguish between elements and compounds
separation by chemical means
separation by physical means
ways in which scientists separate compounds

Is this a scientific model? use complete sentences to explain why or why not. a graphic organizer showing the water cycle

The covalent compound acetylene, which is the fuel of the oxyacetylene torch used by welders, has the molecular formula c2h2. the covalent compound benzene, a commercial solvent, has the molecular formula c6h6 each of these covalent compounds contains carbon and hydrogen atoms in a one-to-one ratio. would it be correct to write the chemical formulas of each as ch? explain.

The minerals found in bones are deposited by living cells called