Help Given the balanced chemical equation:
1 N2(g) + 3 H2(g) → 2 NH3(g)

If 156.8 grams of N2 were consumed, then how many liters of H2 would be needed?

Compare and contrast physical changes with chemical changes.

At element makes up all organic compounds?

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