Chris investigates the conservation of mass during a chemical reaction. He measures the mass of the reactants before the reaction, and the mass of the products afterward. He then shares his results with Garett. Garett says that the experiment was not valid. Which of the following would be best for Chris to validate his results? A) Repeat the experiment several times to make sure the results are reliable.
B) Use different compounds for the reaction so the experiment will proceed faster.
C) Publish his findings in a scientific journal so that other scientists can easily read his results. D) Start the experiment with a different mass to make sure that the law of conservation of mass is observed.

chemistry sucks a**

explanation:

hydrocarbons are organic compounds that contain only hydrogens and carbons. they can be saturated (those which contain only carbon-carbon single bonds) or unsaturated (those which contain carbon-carbon double or triple bonds) in nature. hydrocarbons can undergo several reactions like substitution, elimination etc.  

on substituting one or more hydrogen atoms in hydrocarbon it results in the formation of haloalkane. as the halogen atoms are large compared to the carbon and hydrogen atoms, due to which the molecular weight increases and the bond become polar because of presence electronegative halogen atom and results in the increase in boiling point of the haloalkane.

thus, the correct option is (b) that is the boiling point of the new compound increases on substituting a hydrogen atom with a halogen in a hydrocarbon.