Alpha decay _____ of an element.

1 answer:

5 0

Alpha decay lowers the atomic number of an element. The correct option is B. Alpha decay is a type of radioactive decay in which an atomic nucleus emits an alpha particle, which is an helium particle. During this process, the atomic number of the nucleus is reduced by two and the mass number is reduced by 4.

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Question 23Get help answering Molecular Drawing questions Get help answering Molecular Drawing questions.A compound with molecul

galina1969 [7]

Answer:

The structure for the compound elucidated (4-Ethylbenzoic acid) is attached below.

Explanation:

Degree of Unsaturation = $nC - \frac{nH}{2} +\frac{nO}{2} +1$ (where n = no of moles)

= $9-\frac{10}{2} -\frac{2}{2} +1$

= 9 - 6+1 = 4

⇒ 2 ring. 3 double bonds.

From the 1H NMR data given (peaks labeled A-E)

A. 1.2 (3H, t) ⇒ -CH3

B. 2.6 (2H, q) ⇒ -C=C-H or Aromatic-CH3

C. 7.3 (2H, d) ⇒ Aro.-H

D. 8.0 (2H, d) ⇒ Aro.-H

E. 11.0 (1H, s) ⇒ -COOH

5 0

3 years ago

Determine the molecular geometry about the left carbon atom in ch3co2ch3.

Elanso [62]

Molecular geometry about the left carbon atom in CH₃CO₂CH₃ is tetrahedral.

The geometry around left carbon that is CH₃ is tetrahedral.

As the hybridization around left carbon is sp³ that shows its geometry should be tetrahedral and as there are 4 ligands around carbon and there is no lone pair present so the geometry is tetrahedral. So, the molecular geometry about the left carbon atom in CH₃CO₂CH₃ is tetrahedral.

4 0

3 years ago

Read 2 more answers

When iron rusts in air iron3 oxide is produced. How many moles of oxygen react with 28.0 mol of iron in the rusting reaction 4fe

Marrrta [24]

This the balanced equation based on the question $4Fe + 3O_2 -\ \textgreater \ 2Fe_2O_3$ .

We then proceed with the following calculations

$28.0molFe*(\frac {3molO_2}{4mol Fe})= 21molO_2$

The answer is $21molO_2$ is produced.