First person to answer will be marked the brainliest.

what is the difference between reactants and products in a chemical equation?

in the equation “carbon plus oxygen makes carbon dioxide”, what substance(s) is/are the reactant(s)? what substance(s) is/are the product(s)?

Ch4 and ph3 are both covalent since they are composed both of non-metals.    ch4 is non- polar because of  london forces and has a geometry of tetrahedral  ph3 , on the other hand, is umbrella shaped polar and has dipole-dipole intermolecular force (imf) . since ph3 is polar, it has a stronger imf   

Ionic compounds dissociate into component ions dissolved into a solution creating substances called "electrolytes".hope my answer has you : )