Balance each of the following by adding coefficients, and identify the type of reaction for each:
a.

Question

Balance each of the following by adding coefficients, and identify the type of reaction for each:

a.

Accepted Answer

Hello. In this problem, we are asked to add coefficient to balance the hypothetical equation and identify the type of reaction we are provided with four possible answers. Answer A states, 1211 combination answer B states 1211 decomposition, answer C states 1211 single displacement and answer D states 1111, double displacement. So looking at our hypothetical equation, we have three elements on the reactant side and one compound on the product side, they are written in terms of colored spheres. So we have two red spheres on the reactant side and we have two on the product side, we have one blue sphere on the reactant side and two on the product side. And we have two purple spheres on the reactant side and two on the product side. So as it's written, the red and purple spheres are balanced with two. On both the reactant and the product side, we can balance the number of blue spheres. If we put a coefficient of two out in front of the single sphere on the reactant side, we now have two blue spheres on both sides, we can then fill in our blanks with ones understanding that ones are generally understood. So our coefficients are 1211. This then allows us to eliminate answer D where all of the coefficients are one. We are then looking for the type of reaction that we have answer A gives us combination. We call that combination reaction. We have two or more substances bonding to form one substance. A decomposition reaction is the reverse of this. We have one substance breaking down to form two or more simpler substances. And the other one is a single displacement, a single displacement reaction. We would have an element and a compound on both the reactant and the product side. Looking at our equation, we have elements on the reactant side and a compound on the product side. But we don't have both an element and a compound on both sides of the chemical reaction. So answer C is incorrect answer B then we have decomposition. So we have three substances on the reactant side, not one. So decomposition is also incorrect answer B then we have combination. So we do have three substances on the reactant side that combine to form a single substance on the product side. So our correct answer then is answer A, our coefficients are 1211 and this is a combination reaction. Thanks for watching. Hope this helped.

Balance each of the following by adding coefficients, and identify the type of reaction for each:
a.

Verified video answer for a similar problem:

Key Concepts

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Balance each of the following by adding coefficients, and identify the type of reaction for each:a.

Verified video answer for a similar problem:

Key Concepts

Balancing Chemical Equations

Types of Chemical Reactions

Molecular Representation

Balance each of the following by adding coefficients, and identify the type of reaction for each:
a.