If 2.0 moles of a substance are dissolved in 2.0 liters of solution, then the molarity of this solution is:

0.5 m

1.0 m

1.5 m

2.0 m

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