9. Nitrogen dioxide is a gas that can be generated by emissions from vehicles and
factories. It can also be generated by natural sources, such as forest fires, lightning,
and microbial activity in soil. The equation for producing nitrogen dioxide is shown
below.
2NO
Colorless
gas
+ 02-2NOZ
Colorless
Brown
gas gas
Which of these provides evidence that a chemical reaction occurs?
Answers: 2
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9. Nitrogen dioxide is a gas that can be generated by emissions from vehicles and
factories. It can...
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