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
Nata [24]
3 years ago
8

PLEASE HELP!

Chemistry
2 answers:
stiks02 [169]3 years ago
7 0

Answer:

Decreasing the pressure    B) Shift to the left

Adding hydrogen gas      C) Shift to the right

Adding a catalyst              A) No effect

Explanation:

i just took the quiz and got it right:)

QveST [7]3 years ago
5 0

Answer:

1) Increasing the pressure          A) Shift to the left  

2) Removing hydrogen gas        B) Shift to the right    

3) Adding a catalyst                     C) No effect

Explanation:

  • <em>Le Châtelier's principle states that when there is an dynamic equilibrium, and this equilibrium is disturbed by an external factor, the equilibrium will be shifted in the direction that can cancel the effect of the external factor to reattain the equilibrium.</em>

<em></em>

<u><em>1) Decreasing the pressure:</em></u>

  • When there is an increase in pressure, the equilibrium will shift towards the side with fewer moles of gas of the reaction. And when there is a decrease in pressure, the equilibrium will shift towards the side with more moles of gas of the reaction.
  • The reactants side (left) has 4.0 moles of gases and the products side (right) has 2.0 moles of gases.
  • So, decreasing the pressure will shift the reaction to the side with more moles of gas (left side).

<u><em>so, the right match is: A) Shift to the left.</em></u>

<em><u>2) Adding hydrogen gas:</u></em>

  • Adding hydrogen gas will increase the concentration of the reactants side, so the reaction will be shifted to the right side to suppress the increase in the concentration of hydrogen gas by addition.

<u><em>so, the right match is: B) Shift to the right.</em></u>

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

<u><em>3) Adding a catalyst:</em></u>

  • Catalyst increases the rate of the reaction without affecting the equilibrium position.
  • Catalyst increases the rate via lowering the activation energy of the reaction.
  • This can occur via passing the reaction in alternative pathway (changing the mechanism).
  • The activation energy is the difference in potential energies between the reactants and transition state (for the forward reaction) and it is the difference in potential energies between the products and transition state (for the reverse reaction).
  • in the presence of a catalyst, the activation energy is lowered by lowering the energy of the transition state, which is the rate-determining step, catalysts reduce the required energy of activation to allow a reaction to proceed and, in the case of a reversible reaction, reach equilibrium more rapidly.
  • with adding a catalyst, both the forward and reverse reaction rates will speed up equally, which allowing the system to reach equilibrium faster.

<u><em>so, the right match is: B) No effect.</em></u>

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

You might be interested in
The reaction of benzaldehyde with acetone and sodium hydroxide produces ____________ This is an example of ____________ reaction
timofeeve [1]

The reaction of benzaldehyde with acetone and sodium hydroxide produces DibenzalacetoneThis is an example of an aldol condensation reaction.

Chemical reactions often involve color changes, temperature changes, gas evolution, or precipitate formation. Simple examples of everyday reactions are digestion, combustion, and cooking. As the name suggests, simple reactants produce or synthesize more complex products. The basic form of a synthetic reaction is A + B → AB. A simple example of a synthetic reaction is the formation of water from its elements hydrogen and oxygen: 2 H2(g) + O2(g) → 2 H2O(g).

A physical reaction is a reaction in which a change in the physical properties of matter or substances occurs. Physical properties include density, mass, and volume. The definition of a physical reaction is a reaction in which molecules undergo molecular rearrangements but do not change chemically.

Learn more about the reaction  here

brainly.com/question/11231920

#SPJ4

4 0
1 year ago
Neutral grain spirit is essentially the same as
Dennis_Churaev [7]

The neutral grain spirit is essentially known as rectified spirits or ethyl alcohol.

<h3>Meaning of neutral grain spirit</h3>

neutral grain spirit can be defined as raw material that is very concentrated with alcohol used to produce strong alcoholic products.

neutral grain spirit as the name implies is neutral in nature that is it can be blended with any other alcoholic product.

In conclusion, The neutral grain spirit is essentially known as rectified spirits or ethyl alcohol.

Learn more about ethyl alcohol: brainly.com/question/1049383

#SPJ11

5 0
2 years ago
Answer will mark bl plz
lesya692 [45]

Answer:

A

Explanation:

The mallet transfers kinetic energy, then that energy is transferred to the orange ball, then the purple ball, thus making the purple ball move

3 0
3 years ago
Scientists use bacteria to make medicines,<br><br> o True<br> o False
sladkih [1.3K]

Answer:

true they do I yes they do

6 0
3 years ago
1. The force of a surface pushing back on an object is called the _____ force?
Angelina_Jolie [31]

Answer:

B

Explanation:

7 0
3 years ago
Other questions:
  • Help me now, please!
    7·1 answer
  • How many grams are in 0.36 moles of CCl4
    15·1 answer
  • **CHEMISTRY!! PLEASE HELP ASAP!!**
    6·1 answer
  • I need help with this answer
    9·1 answer
  • Suppose, in an experiment to determine the amount of sodium hypochlorite in bleach, you titrated a 26.34 mL sample of 0.0100 M K
    12·1 answer
  • In compounds,has an oxidation number 1-​
    5·1 answer
  • Which is a chemical property of copper? A. ability to oxidize B. color C. odor D. freezing point
    6·1 answer
  • What is the acceleration of a 100kg object being pushed with a force of 1000 newton's
    6·1 answer
  • What is photosynthesis?​
    7·2 answers
  • 4. What is a homogeneous solution? Give an example.
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!