Answer:
A
Explanation:
Germanium and Carbon are in the same 14th group.
Answer:
Longer hydrocarbon molecules have a stronger intermolecular force. More energy is needed to move them apart so they have higher boiling points . This makes them less volatile and therefore less flammable
PH = -log [H+]
pH = -log (1.0x10^-4) = -(-4) = 4 or A
