Starting substances An ending substance
Properties:
blue powder
no smell
Properts:
colorless liquid
strong smell
1X
A chemist mixed two substances together, a blue powder with no smell and a coloriess liquid with a strong smell. Their
repeating groups of atoms are shown above on the left. After they were mixed the chemist analyzed the results and
found two substances. One ending substance had the repeating group of atoms shown above on the right.
Is the ending substance the same substance as the blue powder? What happened to the atoms of the starting
substances when the ending substances formed? Be sure to explain your answers to both of these questions

for step 7 table c on the lab "newtons law of action"   the average time it took the car to travel .25 meters   was 1.92 seconds.

the average time it took the car to travel 0.50 meters was 2.61 seconds

hope this : )

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.