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Elan Coil [88]
3 years ago
15

Why is there a change in energy during chemical reactions?(1 point)

Chemistry
2 answers:
Firdavs [7]3 years ago
8 0

Energy is released by the formation of chemical bonds, and energy is

absorbed when the bonds are broken.

<h3>What is a chemical reaction?</h3>

A chemical reaction involves the formation of new compounds from

reactants . It involves the formation and breaking of bonds in the

elements.

Energy is released by the formation of chemical bonds and this type of

reaction is referred to as exothermic while energy is absorbed when the

bonds are broken and is referred to as an endothermic reaction.

Read more about Chemical reaction here brainly.com/question/16416932

ehidna [41]3 years ago
6 0

Answer:

Energy is released by the formation of chemical bonds, and energy is absorbed when the bonds are broken

Explanation:

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What is the product of the unbalanced combustion reaction below?<br> C4H10(g) + O2(g) →
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Answer:

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Thus, the product of the unbalanced combustion reaction is:

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C2H4(g) + O2(g) —› 2CO2(g) + H2O(g)

There are 4 atoms of H on the left side and 2 atoms on the right side. It can be balanced by putting 2 in front of H2O as shown below:

C2H4(g) + O2(g) —› 2CO2(g) + 2H2O(g)

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C2H4(g) + 3O2(g) —› 2CO2(g) + 2H2O(g)

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At 25 °C, an aqueous solution has an equilibrium concentration of 0.00253 M for a generic cation, A2+(aq), and 0.00506 M for a g
aleksandrvk [35]

Answer:

The equilibrium constant Ksp of the generic salt AB2 =  6.4777 *10^-8 M

Explanation:

Step 1: The balanced equation

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Step 2: Given data

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Step 3: Calculate the equilibrium constant

Equilibrium constant Ksp of [AB2] = [A2+][B-]²

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The equilibrium constant Ksp of the generic salt AB2 =  6.4777 *10^-8 M

5 0
3 years ago
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