Cars are bumper to bumper traveling at a speed of 45 miles/hour. in two days, how many cars would pass a specific point. each car is 18 ft long

Covalent bonds generally form when the bonded elements have a difference in electronegativity less than 1.5. subtract the electronegativities for the following pairs of elements and predict whether they form a covalent bond. electronegativity difference of c and c: ionic covalent electronegativity difference of mg and cl: ionic covalent