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Dominik [7]
3 years ago
10

1.

Chemistry
1 answer:
kakasveta [241]3 years ago
8 0

Answer:

The answer is "1 and 4 polygons were similar".

Explanation:

In the given question, in both figures 1 and 4, it's measure angle were 10, 60, 110. In figure number 4, its angle is 10, 60, and on the third side, its value is equal to 110, which is (180 - 70).

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3 0
4 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

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

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3 0
3 years ago
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4 0
3 years ago
Read 2 more answers
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