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pantera1 [17]
3 years ago
8

an isotope or barium (atomic number 56)has an mass of 138.how many neutrons are in the nucleus of this isotope

Chemistry
1 answer:
tia_tia [17]3 years ago
8 0

Answer:

Diagram of the nuclear composition and electron configuration of an atom of barium-138 (atomic number: 56), the most common isotope of this element. The nucleus consists of 56 protons (red) and 82 neutrons (blue).

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The same reaction is begun with an initial concentration of 0.05 M O3 and 0.02 M NO. Under these conditions, the reaction reache
Ivahew [28]
The balanced equation of the reaction is:

O3(g) + NO (g) → O2 (g) + NO2 (g)

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If you have initially 0.05 M of O3 and 0.02 M of NO, the reaction will end when all the NO is consumed.

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And the rate of reaction is change in concetration divided by the time.

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3 years ago
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weqwewe [10]
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4 0
3 years ago
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Answer:

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Explanation:

Hello.

In this case, since physical changes do not modify the molecular composition and structure of the material undergoing it whereas the chemical change does, for catalytic converters we should know they promote chemical reaction in which the composition is changed; for instance, for the given example, the following chemical reaction is the evidence:

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Best regards.

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