Is anyone taking Integrated Physics and Chemistry (2014) on switched on schoolhouse if so please answer I have a question ab the class!! Thanks

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.

Using the periodic table, complete the table to describe each atom. type in your answers

Compare and contrast physical changes with chemical changes.