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
sesenic [268]
3 years ago
15

PLEASEEEE HELP ME! I really can’t fail chemistry I tried to do it myself but I feel like my brain doesn’t function properly with

stuff like this

Chemistry
1 answer:
777dan777 [17]3 years ago
3 0

it is the collision number 3

You might be interested in
Find the independent variable and the dependent variable :)))
Naddik [55]

Answer:

dependent variable: plant growth

independent: sunlight impact/amount of light

Explanation:

6 0
4 years ago
Why are the optimum conditions for the Haber process a temperature of 450°C and pressure of 200 atmospheres?
Novay_Z [31]

Answer:

See explanation.

Explanation:

Hello,

Haber process is defined as the widely acknowledged productive process of ammonia by the reaction:

N_2(g)+3H_2(g)\rightleftharpoons 2NH_3(g)

Which is carried out in gaseous phase. Thus, by means of the Le Chatelier's principle, it is possible to know that its standard enthalpy of reaction is -45.90 kJ/mol (NIST webbook) for which it is an exothermic chemical reaction, for that reason less ammonia will be produced at high temperature, nonetheless, the temperature should not be too low since the reaction rate significantly decrease, therefore, the optimum found temperature is 450 °C.

Moreover, since there are more moles (3+1=4) at the reactants and less moles at the products (2), increasing the pressure of the reaction increases the yield of ammonia, nonetheless, higher pressures involve the purchasing of more expensive equipment to withstand the high-pressures, for that reason, the best found pressure has been set as 200 atm.

Best regards.

8 0
4 years ago
Read 2 more answers
How do some deep-water bacteria in the ocean make food?
Umnica [9.8K]

Answer:

They make food by using chemosynthesis.

Explanation:

6 0
3 years ago
In the science fiction movie, The Abyss, a diver is able to breathe while his head is immersed in a specially prepared liquid pu
Klio2033 [76]

Answer:

Explanation:

This type of experiment was carried out in 1960s on rodents, it was partially successful but was perceived impractical and dangerous for humans,it is possible theoretically.

Oxygen is broken down or dissolves in a thin film of fluid in the alveoli, surprisingly in normal breathing liquid composed of dissolved oxygen is involved. Evidently respiratory gas must be able to dissolve in this liquid and in concentration required to keep the partial pressure necessary to power diffusion.

5 0
4 years ago
A gas of certain mass occupies volume of 1.2 L at 37°C and 3 atm. At what temperature will the volume and pressure of this gas b
yKpoI14uk [10]

Answer: At a temperature of 34.44 K the volume and pressure of this gas become one-third of their initial values.

Explanation:

Given : V_{1} = 1.2 L,        T_{1} = 37^{o}C = (37 + 273) K = 310 K

P_{1} = 3 atm,                  V_{2} = \frac{1.2}{3} = 0.4 L ,      P_{2} = \frac{3}{3} = 1 atm

Formula used to calculate the final temperature is as follows.

\frac{P_{1}V_{1}}{T_{1}} = \frac{P_{2}V_{2}}{T_{2}}

Substitute the values into above formula as follows.

\frac{P_{1}V_{1}}{T_{1}} = \frac{P_{2}V_{2}}{T_{2}}\\\frac{3 atm \times 1.2 L}{310 K} = \frac{1 atm \times 0.4 L}{T_{2}}\\T_{2} = \frac{1 atm \times 0.4 L \times 310 K}{3 atm \times 1.2 L}\\= \frac{124}{3.6} K\\= 34.44 K

Thus, we can conclude that the final temperature is 34.44 K.

4 0
3 years ago
Other questions:
  • For a sample of stomach acid that is 2.02×10−2 M in HCl, how many moles of HCl are in 14.6 mL of the stomach acid?
    15·1 answer
  • How do I find the number of neutrons in an atom?
    7·2 answers
  • Rhenium has two naturally occurring isotopes Re - 185 with a natural abundance of 37 40%, and Re - 187 with a natural abundance
    14·1 answer
  • Mandy is testing an unknown solution to determine whether it is an acid or a base. she places a piece of red litmus paper into t
    7·2 answers
  • Find the radius
    5·1 answer
  • A patient is given 0.050 mg of technetium-99 m (where m means metastable—an unstable but long-lived state), a radioactive isotop
    9·1 answer
  • Why is the C-14/C-12 ratio used to date once-living organisms?
    6·1 answer
  • Calculate the pH during the titration of 20.00 mL of 0.1000 M HNO2(aq) with 0.1000 M KOH(aq) after 13.27 mL of the base have bee
    13·1 answer
  • Calculate the energy needed to boil 4 moles of water beginning at 85C into steam with a final temperature of 100-C.
    12·1 answer
  • Need help with this.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!