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Ahat [919]
3 years ago
10

A radioactive nucleus emits a beta particle, then the parent and daughter nuclei are

Chemistry
2 answers:
Nana76 [90]3 years ago
3 0

Answer:

isobars

Explanation:

How?

  • A radioactive nucleus emits beta particle(Like uranium,radium)
  • So the mass numbers are same for daughter nuclei .
  • They have different atomic numbes .

So they are isobars

slega [8]3 years ago
3 0

Answer:

⇢Isobars⇢Isobars

Explanation:

⇢Isobars⇢Isobars

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A 25.0-mL sample containing Cu2+ gave an instrument signal of 25.2 units (corrected for a blank). When exactly 0.500 mL of 0.027
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Answer:

The molar concentration of Cu²⁺ in the initial solution is 6.964x10⁻⁴ M.

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The molar mass of HgO is 216.59 g/mol. The molar mass of O2 is 32.00 g/mol. How many moles of HgO are needed to produce 250.0 g
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A reaction in which Oxygen (O₂) is produced from Mercury Oxide (HgO) would be a decomposition reaction.
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If 250g of O₂ is needed to be produced,
then the moles of oxygen needed to be produced = 250g  ÷  32 g/mol
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Now, the mole ratio of Oxygen to Mercury Oxide is  1  :  2
∴ if the moles of oxygen =  7.8125 mol
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Thus the number moles of HgO needed to produce 250.0 g of O₂ is 15.625 mol
 
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