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matrenka [14]
4 years ago
10

Explain why science is a continuous profession of study.

Chemistry
1 answer:
xxMikexx [17]4 years ago
3 0
Science is a continuous profession of study because new ideas are produced based on new evidence. Also, there are different topics of science such as climate change or new cures to different diseases.
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7.5 moles of nitrogen gas (N2) is formed in the following reaction. How many grams
AfilCa [17]

Answer:

Mass = 255 g

Explanation:

Given data:

Number of moles of nitrogen = 7.5 mol

Mass of ammonia formed = ?

Solution:

Chemical equation:

3H₂ + N₂      →    2NH₃

Now we will compare the moles of nitrogen and ammonia.

             N₂         :        NH₃

               1          :         2

              7.5       :       2/1×7.5 = 15

Mass of ammonia:

Mass = number of moles × molar mass

Mass = 15 mol × 17 g/mol

Mass = 255 g

6 0
3 years ago
Volcanic activity during Earth’s formation is responsible for contributing a significant portion of CO2 and H2O to the atmospher
Valentin [98]
The answer is A i think if it’s wrong someone correct me
6 0
2 years ago
How much pressure does an elephant with a mass of 2200 Kg and a total footprint area of 4500 cm2 exert on the ground?
Debora [2.8K]

Answer:

47911.1 pa

Explanation:

The SI base unit of pressure is pascal, which is N/m^2.

2200 kg is 2200*9.8=21560 N, and 4500 cm^2=4500/10000=0.45 m^2.

So the total pressure exerted on the ground (!!) is 21560/0.45= 47911.1 Pa.

6 0
3 years ago
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Which of the following is an important intermediate in the mechanism of the reaction<br>in the box?​
Dennis_Churaev [7]

Answer:

Explanation:

.

3 0
3 years ago
What is (2.5x10²)² =
siniylev [52]
The answer is 6.25 x 10^4.
8 0
3 years ago
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