A graduate student wanted to use yeast to make radioactive C14 labeled ethanol. He mixed yeast extract with C14 labeled glucose and ethanol was produced from the added glucose. However, he was very disappointed that the ethanol was not labeled. He thought about the experiments and realized that he made a mistake. What could be his mistake

What is the difference between covalent bonds and ionic bonds? covalent bonds involve the sharing of electrons between atoms; ionic bonds involve the electrical attraction between charged atoms. covalent bonds involve the transfer of electrons between charged atoms; ionic bonds involve the sharing of electrons between atoms. covalent bonds involve the sharing of pairs of electrons between atoms; ionic bonds involve the sharing of single electrons between atoms. covalent bonds involve the sharing of electrons between atoms; ionic bonds involve the sharing of protons between charged atoms.