Covalent bonds generally form when the bonded elements have a difference in electronegativity less than 1.5. Ionic bonds generally form when the bonded elements have a difference in electronegativity greater than 1.5 What is the electronegativity difference between aluminum and oxygen will these two atoms form an iconic or covalent compound A. 5.0 ionic compound

B. 5.0, covalent compound

C. 2.0, Covalent compound

D. 2.0, ionic compound

Cryolite, na3alf6(s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. start this question by first balance the chemical equation.1.) balance the equation: - alo3(s)+naoh(l)+hf(> na3alf6+h2o(g). 2.) if 17.5 kilograms of al2o3(s), 51.4 kilograms of naoh(l), and 51.4 kilograms of hf(g) react completely, how many kilograms of cryolite will be produced? 3.)which reactants will be in excess, (al2o3, naoh, or hf) 4.)what is the total mass of the excess reactants left over after the reaction is complete in kg?