Which statement about a system at equilibrium is true?(1) The forward reaction rate is less than the reverse reaction rate.(2) The forward reaction rate is greater than the reverse reaction rate.(3) The forward reaction rate is equal to the reverse reaction rate.(4) The forward reaction rate stops and the reverse reaction rate continues.
Answers
Answer: Option (3) is the correct answer.
Explanation:
A reaction in which the concentration of reactants equal to the concentration of products is known as an equilibrium reaction.
For example,
Therefore, we can also say that in an equilibrium reaction rate of forward reaction becomes equal to the backward reaction.
The true statement about a system at equilibrium is that the forward reaction rate is equal to the reverse reaction rate.
What is equilibrium state?
Equilibrium state is that state in which the concentration of reactant as well as of producrs are constant. i.e. not changes.
Equilibrium state of any reaction will be represented by the double headed arrow as:
A + B ⇄ C + D
Given reaction defines that rate of forward reaction is equal to the rate of the backward reaction.
Hence option (3) is correct.
To know more about equilibrium state, visit he below link:
Related Questions
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Given the reaction: Mg(s) + 2 AgNO3(aq) → Mg(NO3)2(aq) + 2 Ag(s) Which type of reaction is represented?
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Atoms of Group 6 of the Periodic Table are most likely to form ions with
Answers
The pH of a 0.020 M aqueous solution of propionic acid is 1.70.
What is aqueous solution?
Aqueous solution is defined as a chemical mixture in which water serves as the solvent. Aqueous solutions are made up of water and one or more dissolved materials. Solids, gases, or other liquids can all dissolve in an aqueous solution. A mixture needs to be stable in order to be considered a true solution.
pH is defined as a scale that is used to describe an aqueous solution's acidity or basicity. A high pH in the body can happen for a number of reasons, such as faulty kidney/liver function, digestive issues, drug side effects, and lung issues. When the body's levels of carbon dioxide, an acid, are too low, respiratory alkalosis occurs.
pH = -log[H+]
pH = -log [ aqueous solution ]
pH = - log [ 0.020 ]
pH = 1.70
Thus, the pH of a 0.020 M aqueous solution of propionic acid is 1.70.
To learn more about aqueous solution, refer to the link below:
#SPJ2
Answers
Answers
Explanation:
Atomic number is defined as the sum of total number of protons present in an atom. Each element has different atomic number.
Whereas mass number is the sum of total number of both protons and neutrons present in an element.
For example, an atom with mass number as 15 and has atomic number 7. Then it means it has 7 protons.
Therefore, number of neutrons present in it will be calculated as follows.
Mass number = no. of protons + no. of neutrons
15 = 7 + no. of neutrons
no. of neutrons = 15 - 7
= 8
Thus, we can conclude that the number of neutrons is calculated as mass number minus total number of protons present in the atom.
no subscripts
no 1's for coefficients
WILL GIVE BRAINLIEST!
Answers
Answer:
I kinda forgot. I'm sorry if I didn't answer your question.
Explanation:
The molar mass of Cu is 63.5 g/mol. The molar mass of Ag is 107.9 g/mol. What mass, in grams, of Ag is produced from reaction of 31.75 g of Cu?
26.95
107.9
215.91
431.82
Answers
we are given the reaction Cu + 2AgNO3 ---> Cu(NO3)2 + 2Ag. This means for every mole Cu used, there are 2 moles of Ag produced. In this case, given 31.75 g Cu, converting to moles through molar mass and using stoichiometric ratio and the molar mass of Ag, the mass Ag produced is 107.9 grams.
The mass in grams of Ag produced from reaction of 31.75g of Cu is 107.9 grams
calculation
Cu+2AgNO3 ---> Cu(NO3)2 + 2Ag
find the moles of Cu that reacted
moles= mass/molar mass
=31.75 g/63.5 g/mol= 0.5 moles
from the equation above the mole ratio of CU:Ag is 1:2 therefore the moles of Ag=0.5 moles x2 = 1 mole
mass of Ag= moles of Ag x molar mass
= 1 mole x107.9g/mol = 107.9 grams