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although ___________ reactions can cause ________ changes and __________, they can also be used to help _____ environmental change.
What does the complete combustion of gasoline in a car's engine produce?
In a cars engine, _______ burns and reacts with _______.
What is incomplete combustion? Why does it occur?
What oxides does the exhaust include and why are they hazardous?
What are catalytic converters?
How do catalytic converters work?
Explain what a catalyst is.
