Covalent compounds may be represented in many different ways, including ball-and-stick models and space-filling models. Give the molecular formula for each of the following compounds. List carbon atoms first, then hydrogen atoms, and then any other type of atom in the formula. Part 1 (1 pt) See Periodic Table See Hint Be sure to use correct chemical equation format, with numbers of atoms entered as subscripts. Part 2 (1 pt) x x Ho Part 3 (1 pt) x x. 'He