A catalytic converter is a device that uses a catalyst to convert three harmful compounds in car exhaust into harmless compounds. The three harmful compounds are: 1  Hydrocarbons (in the form of unburned gasoline).
Answers.comÂ® is making the world better one answer at a time. Slavery ended permanently in Louisiana in 1865. The end of slavery was a direct result of the passage of the Thirteenth Amendment to the Constitution.
The last state to end slavery was Texas. Another answer: Texas was the last Confederate state to end slavery: June 19, 1865, Juneteen It did not end in the entire United â¦ States until December 18, 1865. At that point the Secretary of State declared the 13th amendment ratified.