Final answer:
Propane has a molecular formula of C3H8 with a backbone of three single-bonded carbon atoms, and therefore, no double bonds are present in its structure.
Step-by-step explanation:
Propane has a molecular formula of C3H8 with a backbone of three single-bonded carbon atoms, and therefore, no double bonds are present in its structure. In an electron dot diagram of propane (C₃H₈), there are no double bonds present. Propane is an alkane with a molecular formula of C₃H₈ and consists of a backbone of three carbon atoms, each of which is single bonded to the others and surrounded by hydrogen atoms.
In a covalent bond, atoms share electrons to form a stable molecule. Since each carbon atom forms four bonds and each hydrogen atom forms one bond, all the bonds in propane are single bonds, implying that all carbon-carbon bonds in propane are single bonds.