What elements that have a non polar covalent bond make up the molecule of oil

What is the correct lewis structure for chloroform chcl3

Gwhich r group would most likely be found in a hydrophobic area of the tertiary structure of a globular protein? which r group would most likely be found in a hydrophobic area of the tertiary structure of a globular protein? −ch2−oh −ch2−o||c−nh2 −ch2−coo− −ch2−ch2−ch2−ch2−n+h3

What is the oxidation state of each individual carbon atom in c2o42−?