Cheflulu5727
03.12.2020 •
Chemistry
1. 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.
The total number of
atoms remains
unchanged.
+
2NO
Colorless
gas
Colorless
gas
+ 2NO,
Brown
gas
The state of matter
remains the same.
E
Which of these provides evidence that a
chemical reaction occurs?
A gas is present.
CLEAR ALL
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Ответ:
H Ca Cl