What happens when 10g of nitrogen combines with 10 grams of hydrogen

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 energy in joules of a mole of photons associated with visible light of wavelength 486 nm?

Which is an example of a highly unstable isotope that is often used in fission reactions?