The following pictures represent the initial state and the equilibrium state for the reaction of A 2 molecules (red) with B atoms (blue) to give AB molecules. (a) Write a balanced chemical equation for the reaction.

Hello everyone today we are given the following illustration that shows a hypothetical reaction between A. Which are the green spears and B. Which are the white spheres were asked which of the following best represents the reaction above. And so for green spheres or for a we have three of them and they are molecules they're paired up with each other so they're going to represented by that two symbol. And for our B. Or white spheres we have nine of those And those are also paired up. So it's gonna be denoted by B. two. And so these two are going to combine with one another to form six A. B. three molecules here. And so if we were to divide each of these by a common denominator, which one would it be? Well, each of these can be divisible by three. So if we take each of these and divided by three. So if we take three A two divided by three plus hour nine be to divide that by three as well as our six A. B. Three and divide that by three. We will end up with a two plus three. B two is going to produce two moles of a. B. Three. So with this given reaction, this perfectly aligns with answer choice A. I hope this helped. And until next time

Ch.15 - Chemical Equilibrium

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McMurry 8th Edition

Ch.15 - Chemical Equilibrium

Problem 44a

Chapter 15, Problem 44a

The following pictures represent the initial state and the equilibrium state for the reaction of A₂ molecules (red) with B atoms (blue) to give AB molecules. (a) Write a balanced chemical equation for the reaction.

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Identify the reactants and products in the reaction. The reactants are A_2 molecules and B atoms, and the product is AB molecules.

Write the unbalanced chemical equation using the identified reactants and products: A_2 + B -> AB.

Balance the chemical equation by ensuring the number of each type of atom is the same on both sides of the equation.

Since each A_2 molecule contains 2 A atoms, and each AB molecule contains 1 A atom, you will need 2 AB molecules to balance the A atoms.

The balanced chemical equation is: A_2 + 2B -> 2AB.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Balanced Chemical Equation

A balanced chemical equation represents a chemical reaction with equal numbers of each type of atom on both sides of the equation. This ensures the law of conservation of mass is upheld, meaning that matter is neither created nor destroyed during the reaction. To balance an equation, coefficients are adjusted in front of the chemical formulas to achieve this equality.

Chemical Reaction Types

Chemical reactions can be classified into various types, such as synthesis, decomposition, single replacement, and double replacement. In this case, the reaction of A2 with B to form AB is a synthesis reaction, where two or more reactants combine to form a single product. Understanding the type of reaction helps in predicting the products and balancing the equation.

Equilibrium in Chemical Reactions

Chemical equilibrium occurs when the rates of the forward and reverse reactions are equal, resulting in constant concentrations of reactants and products. In the context of the given reaction, equilibrium indicates that A2 and B are reacting to form AB, but the reaction can also proceed in the reverse direction. Recognizing equilibrium is crucial for understanding the dynamics of the reaction and how it can shift under different conditions.

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