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sleet_krkn [62]
3 years ago
12

Which use of biotechnology most benefits North Carolina agriculture? *

Chemistry
1 answer:
Colt1911 [192]3 years ago
6 0

Answer:

Producing disease-resistant crops

Explanation:

B. is the Right Answer Hope this helps!

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The accepted value for the percent by mass of water in a hydrate is 36.0%. In a laboratory activity, a student determined the pe
valentina_108 [34]
The original or accepted value for the percent by mass of water in a hydrate = 36%
Percen by mass of water in the hydrate determined by the student
in the laboratory = 37.8%
So the difference between the actual and the percent by mass in water determined by student = (37.8 - 36.0)%
             = 1.8%
So the percentage of error made by the student = (1.8/36) * 100 percent
                                                                             = (18/360) * 100 percent
                                                                             = ( 1/20) * 100 percent
                                                                              = 5 percent
So the student makes an error of 5%. Option "1" is the correct option.
4 0
3 years ago
What are the answers to those pls helpppp
Valentin [98]
Nolur acil lütfen yalvarırım sana da hayırlı
4 0
3 years ago
The atomic number is based on the number of protons.
chubhunter [2.5K]
It is the atomic mass because you add the protons and neutrons together to get this number
5 0
3 years ago
If you add more molecules but do not change the temperature or the pressure, what will happen to the system?
VladimirAG [237]

Answer:

the volume will increase

Explanation:

The kinetic energy of gas molecules depend upon the temperature . If temperature is increased , the molecules will move faster . When temperature is decreased , they move slower .

Hence when more molecules are added to a gas without changing its temperature , the velocity of gas molecules will remain unchanged .

Since pressure  is also constant , it is volume which will be increased .

It can be explained from universal gas formula as follows

PV = nRT

P , R and T is constant ,

V ∝ n

Volume is proportional to n which depends upon number of molecules .

So volume will increase if number of molecules increases .

6 0
2 years ago
A 3-m3 rigid tank contains hydrogen at 250 kPa and 550 K. The gas is now cooled until its temperature drops to 350 K. Determine
san4es73 [151]

Answer:

A. 159.1 kPa.

B. 686.23 kJ.

Explanation:

Below is an attachment containing the solution.

6 0
3 years ago
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