A water tank can hold 1 m^3 of water. When its empty, how much liters is needed to refill it?

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.

What is the percentage of hydrogen in nitrogen trihydride

Light waves can move through , but they travel fastest when they move through a(n) .