Myrcene is a hydrocarbon found in the essential oils of certain plants. It has a molecular formula of C10H16. If a sample of pure myrcene was analyzed and found to

contain 90.0 grams of carbon, how many grams of hydrogen would it contain?

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.

c. orbital shape i hope this is correct