28.7 l of propane, c3h8, are consumed in a combustion reaction. how many grams of water are produced?

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 mass of 0.46 mol of mgcl2

Ineed this asap part i: scientific method what is the difference between science and pseudoscience? what is the scientific method?