What kind of orbital is occupied by the lone pair electrons in caffeine molecule?

At stp, what is the volume of 1 mole of co2?

In the following redox reaction which is the oxidizing agent and which is the reducing agent? alcl3 + na nacl + al

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.