Plz help what is a font!

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 lowest number energy level where a d sublevel is found

To calculate percent by mass, use the equation below: calculate the percent by mass of each element. %n = % %h = % %o = %