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babunello [35]
3 years ago
12

Nitrogen dioxide is a gas that can be generated by emissions from vehicles and factories. It can also be generated by natural so

urces, such as forest fires, lightning, and microbial activity in soil. The equation for producing nitrogen dioxide is shown below. Which of these provides evidence that a chemical reaction occurs?​

Biology
1 answer:
klio [65]3 years ago
6 0

Answer:

D. A brown gas produced

Explanation:

When a chemical reaction occur, there are several changes that takes place such as change in color, odor change, formation of a gas, and formation of a precipitate etcetera.

In the given chemical reaction, two colorless gas (NO and O2) react together and form brown gas (NO2). So, the change of gas from colorless to brown gas is the evidence that shows chemical reaction occurred.

Hence, the correct option is "D. A brown gas produced".

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qwelly [4]

Answer:

B

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Is maltodextrin flammable substance?
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Darnell is planning to rent a booth at a trade show specifically for veterinarians. Darnell’s company offers benefits like disco
Alik [6]

The number attendees that would most likely be interested in Darnell's booth is : ( A ) 1 : 3

Aim : The question is all about the ratio of self employed vet at the trade show to the total number of Vets  at the trade show

<u><em>Assuming </em></u>

Number of self employed veterinarians = 20

Number of Veterinarians = 60

<h3>Determine the number of self employed vet that are interested in Darnell's booth </h3>

Total number of Vet = 60

number of self employed Vet = 20

= number of self employed / Total number of Vet

= 20 / 60

= 1 : 3  

Hence we can conclude that The number attendees that would most likely be interested in Darnell's booth is : ( A ) 1 : 3

Learn more about ratio: brainly.com/question/2328454

8 0
2 years ago
Analyze this molecule and select all of the true statements below. Check All That Apply This molecule is adenosine triphosphate.
ira [324]

Answer:

ATP, is a molecule  called adenosine triphosphate.

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This molecule is a type of nucleotide.

ATP is a nucleotide formed by three phosphate groups and an adenosine. The nucleotide is adenine with three energy-rich phosphate groups.

3 0
3 years ago
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