Q3.An ideal gas has volume of 2litres at 2atmosphere and - 40C. To how many atmosphere of pressure must it be subjected to be compressed to half litre when the temperature is 80C?

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