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AysviL [449]
3 years ago
15

Two atoms that are isotopes of one another must have the same number of what? A.neutrons

Chemistry
1 answer:
seraphim [82]3 years ago
3 0

Two  atoms that  are isotopes of  one another that   must the same number of   protons ( answer B)

<em><u>Explanation</u></em>

  • Isotope  are two or more forms  of the same element that contain  the same  number of protons and  electron   but different  number  of neutrons.
  • For example  carbon 12  and carbon 14   are both  isotope of carbon.
  • Carbon 12 has 12 neutrons while  carbon 14 has  8 neutrons.
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A beaker containing a mixture of N2(g) and H2(g) is cooled by placing it in a tray of cold water. In response to the cooling, th
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The frequency of collisions between the N₂ and H₂ molecules will decrease and the rate of reaction will also decrease.

Since the water is cooler than the gas mixture, heat will flow from the gas to the water.

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The molecules will be moving more slowly, so there will be <em>fewer collisions</em> and <em>fewer of these collisions will have enough energy to react</em>.

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<h3>What is the moles of N2O in the given conditions?</h3>

STEP1- Apply the ideal gas equation

            PV=nRT

STEP2- Put the given values in the equation

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STEP3- Solve the equation

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           N=130×40/8.31×298

             N=2.1moles

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            mass = 92.4g

Hence, the mass of N₂O is 92.4g.

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2 years ago
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