Observation made when hydrous copper 2 sulphate exposed on atmosphere​

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.

How many grams of mgbr2 are needed to produce 75g or metal?

Heat is the total potential energy of a substance that can be transferred. true false