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
ohaa [14]
2 years ago
8

At equilibrium the reactant and product concentrations are constant because a change in one direction is balanced by a change in

the other as the forward and reverse rates become equal:At equilibrium: rate_twd=rate_rev When a chemical system is at equilibrium,a. he concentrations of the reactants and products have reached constant values.b. the concentrations of the reactants are equal to the concentrations of the products.c. the forward and reverse reactions have stopped.d. the reaction quotient, Q, has reached a maximum.e. None of the choices.
Chemistry
1 answer:
Anna [14]2 years ago
5 0

Answer: a. The concentrations of the reactants and products have reached constant values

Explanation:

The reactions which do not go on completion and in which the reactant forms product and the products goes back to the reactants simultaneously are known as equilibrium reactions.  For a chemical equilibrium reaction, equilibrium state is achieved when the rate of forward reaction becomes equal to rate of the backward reaction.

Equilibrium state is the state when reactants and products are present but the concentrations does not change with time and are constant.

Equilibrium constant is defined as the ratio of concentration of products to the concentration of reactants each raised to the power their stoichiometric ratios. It is expressed as K_{eq}

K is the constant of a certain reaction when it is in equilibrium, while Q is the quotient of activities of products and reactants at any stage other than equilibrium of a reaction.

For a equilibrium reaction,

A\rightleftharpoons B

K_{eq}=\frac{[B]}{[A]}

Thus the correct answer is the concentrations of the reactants and products have reached constant values.

You might be interested in
To identify a diatomic gas (X2), a researcher carried out the following experiment: She weighed an empty 3.6-L bulb, then filled
aleksandrvk [35]

Answer:

The gas was N₂

Explanation:

V = 3.6L

P = 2.0 atm

T = 24.0°C = 297K

R = 0.0821 L.atm/K.mol

m = 8.3g

M = molar mass = ?

Using ideal gas equation;

PV = nRT

n = no. Of moles = mass / molar mass

n = m/M

PV = m/M * RT

M = mRT / PV

M = (8.3*0.0821*297) / (2.0*3.6)

M = 28.10

Since X is a diatomic molecule

M = 28.10 / 2 = 14.05 g/mol

M = Nitrogen

X = N₂

5 0
2 years ago
Doctors have fought infections with penicillin for over 50 years. Recently, penicillin has not worked as well as before. Which o
Lilit [14]

C. "A" mentions that the drug killed all of the bacteria that are resistant to the drug, and that doesn't make any sense. "B" claims that all bacteria are resistant to the drug. This is not true. "D" mentions that bacteria eat the drug, which doesn't happen.

5 0
2 years ago
If the density of
Soloha48 [4]
It’s the doubles I think not sure let me know if it’s true
8 0
3 years ago
An electrolytic cell is set up to plate Zr(s) from a solution containing Zr4 (aq). A current of 7.92 amps is run through this so
iren [92.7K]

The mass of Zr deposited in the process is 41.4 g.

<h3>What is electrolytic cell?</h3>

An electrolytic cell is a chemical cell which produces electrical energy by non-spontaneous chemical processes.

From the question;

Zr^4+(aq) + 4e ------> Zr(s)

We know that;

91 g of Zr is deposited by 4(96500) C

xg of Zr is deposited by (7.92 × 6.16 × 60 × 60) C

xg = 91 g ×  (7.92 × 6.16 × 60 × 60) C/4(96500) C

x g = 41.4 g

Learn more about electrolysis: brainly.com/question/12054569

8 0
1 year ago
PLEASE HELP ASAP!
egoroff_w [7]

Answer:

Lithium fluoride i think but I am not really sure

But it should be Lithium fluoride

Explanation: that's because neighter boron nor nitrogen contains water

3 0
2 years ago
Other questions:
  • A characteristic of a pure substance that can be observed without
    14·1 answer
  • Based on your observations in the lab, what do you think happens to the majority of water (not, ice) at the poles? at the equato
    7·1 answer
  • Calculate the volume of a balloon filled with 0.0940 grams of helium, given the fact that the density of helium is 0.179 g/L
    7·1 answer
  • How many calories are required to convert 17 g of ice at 0.0°C to liquid water at 32.0°C? The heat of fusion of water is 80. c
    11·1 answer
  • Which statement correctly explains the polarity of the water molecule?. A) The hydrogen end of the molecule has a partial negat
    13·2 answers
  • Solid cesium iodide has the same kind of crystal structure as CsCl which is pictured below: If the edge length of the unit cell
    12·1 answer
  • Brainliest!!!!!!Parking lots and other man made ground coverings may increase erosion around there edges
    13·1 answer
  • The sum of 4.824 + 2.03 + 4.72319 + 123.4567 + 111.1 expressed to the
    9·1 answer
  • Have you had the chance to watch a tree grow over a span of several years? Did you notice that the tree grew thicker and taller?
    15·1 answer
  • Which type of precipitation is shown in the diagram below? How does this precipitation form?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!