1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Bezzdna [24]
2 years ago
15

How do living organisms use nitrogen

Chemistry
1 answer:
hoa [83]2 years ago
8 0

Answer:

it produces amino acids and proteins. It is also needed to make chlorophyll in plants, which is used in photosynthesis to make their food.

You might be interested in
A 25.00 mL sample of the ammonia solution
musickatia [10]

Answer:

1.634 molL-1

Explanation:

The mol ration between NH3 and HCl is 1 : 1

Using Ca Va / Cb Vb = Na / Nb   where a = acid and b = base

Na = 1

Nb = 1

Ca = 0.208 molL-1

Cb = ?

Va = 19.64 mL

Vb = 25.00mL

Solving for Cb

Cb = Ca Va / Vb

Cb = 0.208 * 19.64 / 25.0

Cb = 0.1634 molL-1 (Concentration of diluted ammonia solution)

Using the dilution equation;

C1V1 = C2V2

Initial Concentration, C1 = ?

Initial Volume, V1 = 25.00 mL

Final Volume, V2 =  250 mL

Final Concentration, C2 = 0.1634 molL-1

Solving for C1;

C1 = C2 * V2 / V1

C1 = 0.1634 * 250 / 25.00

C1 = 1.634 molL-1

3 0
3 years ago
How are theres over 2,500 different minerals why?
SOVA2 [1]
A mineral occurs naturally, meaning that even though there are artificial substances that might be described as mineral-like they are not minerals
5 0
3 years ago
Which of the following is the best thermal conductor?<br><br> metal<br> wood<br> paper<br> air
Ganezh [65]

Answer:

metal

Explanation:

5 0
3 years ago
Read 2 more answers
4. The type of thermal energy transfer that heats our homes is called
andrew-mc [135]

Answer:

conduction is the answer

6 0
2 years ago
Air, with an initial absolute humidity of 0.016 kg water per kg dry air, is to be dehumidified for a drying process by an air co
amid [387]

Answer:

(a) The proportion of dry air bypassing the unit is 14.3%.

(b) The mass of water removed is 1.2 kg per 100 kg of dry air.

Explanation:

We can express the proportion of air that goes trough the air conditioning unit as p_{d} and the proportion of air that is by-passed as p_{bp}, being p_{d}+p_{bp}=1.

The amount of water that goes into the drier inlet has to be 0.004 kg/kg, and can be expressed as:

0.004 = 0.016*p_{bp}+ 0.002*p_{d}

Replacing the first equation in the second one we have

0.004 = 0.016*(1-p_{d})+ 0.002*p_{d}=0.016-0.016*p_{d}+0.002*p_{d}\\0.004 - 0.016 = (-0.016+0.002)*p_{d}\\-0.012 = -0.014*p_{d}\\p_{d}=\frac{-0.012}{-0.014}=0.857\\\\p_{bp}=1-p_{d}=1-0.857=0.143

(b) Of every kg of dry air feed, 85.7% goes in to the air conditioning unit.

It takes (0.016-0.002)=0.014 kg water per kg dry air feeded.

The water removed of every 100 kg of dry air is

100 kgDA*0.857*0.014 kgW/kgDA= 1.1998 \approx 1.2 kgW

It can also be calculated as the difference in humiditiy between the inlet and the outlet: (0.016-0.004=0.012 kgW/kDA) and multypling by the total amount of feed (100 kgDA).

100 * 0.012 = 1.2 kgW

7 0
3 years ago
Other questions:
  • Should a mortar and pestle should be used for grinding only one substance at a time
    11·1 answer
  • What is the conjugate acid of each of the following? What is the conjugate base of each?
    5·1 answer
  • Can you determine the molecular formula of a substance from its percent composition
    9·1 answer
  • Which pair of elements can form an ionic compound? A) Two atoms of hydrogen B) One atom of sodium and one atom of fluorine C) On
    7·2 answers
  • 2H2O + 2K (s) → 2KOH (1) + 2H2 (g) is an example of which type of reaction?
    13·2 answers
  • The water in a 150-mL flask is poured into a beaker that contains 600 mL of ethyl alcohol. Which substance is the solvent in thi
    12·2 answers
  • The following reactions have the indicated equilibrium constants at a particular temperature: N2(g) + O2(g) ⇌ 2NO(g) Kc = 4.3 ×
    10·1 answer
  • PLEASE HELP!! I GIVE BRAINLIEST
    12·1 answer
  • Carbon dioxide (CO2) is an organic molecule. True or False
    10·2 answers
  • Pleaseeeeeeeeeeee help this is due today
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!