All categories

3 years ago

Write the nuclear equation for the alpha decay of:

Chemistry

1 answer:

Agata [3.3K]3 years ago

6 0

Answer:

The answer to your question is below

Explanation:

Alpha decay occurs when a radioactive atm emits an alpha particle (Helium atom).

a) ²⁵⁶Ra ⇒ ²⁵²₈₄ Po + ⁴₂He

b) ²¹⁹Rn ⇒ ²¹⁵₈₂Pb + ⁴₂He

c) ²¹¹Po ⇒ ²⁰⁷₈₀Hg + ⁴₂Hg

d) ²¹⁰Pb ⇒ ²⁰⁶₇₈Pt + ⁴₂Hg

e) ²³⁸U ⇒ ²³⁴₈₈U + ⁴₂Hg

You might be interested in

How many total valence electrons are available for the Lewis Dot structure of H2S?

Anettt [7]

Answer:

8 Valence Electrons

Explanation:

There are 2 atoms of Hydrogen and 1 atom of Sulfur in the compound.
Each Hydrogen atom has 1 electron (which is the valence electron).
Sulfur has six valence electrons.
Therefore, there is a total of eight valence electrons in H2S.

7 0

2 years ago

The enzyme Y catalyzes the elementary reaction

lions [1.4K]

Answer:

0.7μM = 0.6 μM = 0.5 μM > 0.4 μM > 0.3 μM > 0.2 μM

Explanation:

An enzyme solution is saturated when all the active sites of the enzyme molecule are full. When an enzyme solution is saturated, the reaction is occurring at the maximum rate.

From the given information, an enzyme concentration of 1.0 μM Y can convert a maximum of 0.5 μM AB to the products A and B per second means that a 1.0 M Y solution is saturated when an AB concentration of 0.5 M or greater is present.

The addition of more substrate to a solution that contains the enzyme required for its catalysis will generally increase the rate of the reaction. However, if the enzyme is saturated with substrate, the addition of more substrate will have no effect on the rate of reaction.

<em>Therefore the reaction rates at substrate concentrations of 0.7μM, 0.6 μM, and 0.5 μM are equal. But the reaction rate at substrate concentrations of 0.2 μM is lower than at 0.3 μM, 0.3 μM is lower than 0.4 μM and 0.4 μM is lower than 0.5 μM, 0.6 μM and 0.7 μM.</em>

6 0

2 years ago

Which statements describe how traits are inherited? Check all that apply.

Varvara68 [4.7K]

Answer:

Explanation:

Alleles being more minute than genes,can pass on trait similar or different

4 0

3 years ago

For each of the following sublevels, give the n and l values and the number of orbitals: (a) 6g; (b) 4s; (c) 3d.

olya-2409 [2.1K]

Answer:

(a) 6g. Shell 6, n = 6. Subshell g, l = 4. Number of orbitals in sublevel = 9

(b) 4s. Shell 4, n = 4. Subshell s, l = 0. Number of orbitals in sublevel = 1

Explanation:

The rules for electron quantum numbers are:

1. Shell number, 1 ≤ n, n = 1, 2, 3...

2. Subshell number, 0 ≤ l ≤ n − 1, orbital s - 0, p - 1, d - 2, f - 3

3. Orbital energy shift, -l ≤ ml ≤ l

4. Spin, either -1/2 or +1/2

So,

(a) 6g. Shell 6, n = 6. Subshell g, l = 4. Number of orbitals in sublevel = 2l+1 = 9

(b) 4s. Shell 4, n = 4. Subshell s, l = 0. Number of orbitals in sublevel = 2l+1 = 1

4 0

3 years ago

Oxidation no of carbon in C3H7OH

mestny [16]

Answer:

-2

Explanation:

7 x 1 - 2 x 1 + 1 x 1 + 3C = 0 (no charge)

6 + 3C = 0

C = -2

6 0

3 years ago