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pochemuha
4 years ago
14

What is an exothermic reaction

Chemistry
1 answer:
jeka57 [31]4 years ago
7 0

Answer:

A reaction which releases energy as heat or light :)

Explanation:

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Express the equilibrium constant for the combustion of ethanol in the balanced chemical equation. C2H5OH(g)+3O2(g)⇌2CO2(g)+3H2O(
Bogdan [553]

Answer:

The correct answer is C where K=[CO2]^2[H2O]^3/[C2H5OH][O2]^3

Explanation:

Equilibrium constant (K) is expressed as the product of all the products divided by the product of all reactants. the coefficient in front of each reactants or products are used as their exponents. Solids and liquids are considered to be 1 hence they are not shown, but in this case everything is in gaseous form thus they are all expressed in the equilibrium formula formula.

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3 years ago
What's the Cation and Anion of Fe2(SO4)3
Whitepunk [10]
Cation is Fe^+2 and anion is SO4^-2
7 0
3 years ago
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Electron configuration is a description of the shells, subshells, and orbitals occupied by electrons?
svetoff [14.1K]

I believe the answer is true.

7 0
3 years ago
disolvemos 25 g de hidroxido de sodio en agua hasta obtener 500 cm3 de disolucion. ¿Cual es la concentracion molar de la disoluc
LiRa [457]

Answer:

M=1.25M

Explanation:

Hola,

Dado que la molaridad de una solución es definida en términos de las moles de soluto y el volumen de la solución en litros:

M=\frac{n}{V}

Primero debemos calcular las moles de hidróxido de sodio, teniendo en cuenta que su masa molar es de 40 g/mol:

n=25gNaOH*\frac{1molNaOH}{40gNaOH}=0.625mol

Luego, el volumen el litros:

V=500cm^3*\frac{1L}{1000cm^3} =0.500L

Así, calculamos la concentración molar de la solución:

M=\frac{0.625mol}{0.500L}\\ \\M=1.25M

Saludos!

3 0
3 years ago
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What would be the pH after mixing!!
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4 years ago
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