The density of air under ordinary conditions at 25oC is 1.19 g/L . How many kilograms (kg) of air are in a room that measures 11.0 ft * 11.0 ft and has an 10.0 ft ceiling?

What’s a special glass that most beakers are made of

C3h8o3 - glycerol major species present when dissolved in water

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.