Two oil tanks are connected to each other through a manometer. If the difference between the mercury levels in the two arms is 78 cm, determine the pressure difference between the two tanks. The
densities of oil and mercury are 780 kg/m3
and 13600 kg/m3
, respectively.

How to solve 4 nh3(g) + 5 o2(g) > 4 no(g) + 6 h2o(g) in chemistry

Which of the following is a compound? a.carbon b.oxygen c.hydrogen d.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.