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2 years ago

Imagine an element, X, that has two naturally occurring

Chemistry

1 answer:

Mrac [35]2 years ago

3 0

The characteristics of the percentage allow finding that the abundance of the second isotope is

b = 100 - a%

Chemical elements are stable structures that appear in the periodic table, these structures can have some variations, changing the number of protons changes the type of chemical element, but changing the number of neutrons, with the same atomic number, the elements with all their hardware properties, this type of atoms is called isotopes.

In this case it is said that the element X has two isotopes, if the abundance of one of them is a, the sum of all the abundances must give the total value of 1 or 100%,

the total abundance is

1 = a + b

b = 1- a

this is the abundance of the other isotope, if you prefer it can be given as a percentage

b = 100 - a%

In conclusion using the characteristics of the percentage we can find the abundance of the second isotope is

b = 100 - a%

learn more about percentage here:

brainly.com/question/21814361

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An iron storage tank is placed in the ocean with no cathodic protection. a. What is the electrolyte in this reaction? b. As the

MariettaO [177]

Answer:

Iron is being oxidized at the anode and water is acting as the electrolyte.

Explanation:

When iron is exposed to oxygen and water , the rusting of iron takes place.

The reaction taking place at anode : Oxidation of iron.

${anode:}\;\text{Fe}(s)\;{\longrightarrow}\;\text{Fe}^{2+}(aq)\;+\;2\text{e}^{-}$

The reaction taking place at cathode : Reduction of oxygen in the air.

${cathode:}\;\text{O}_2(g)\;+\;4\text{H}^{+}(aq)\;+\;4\text{e}^{-}\;{\longrightarrow}\;2\text{H}_2\text{O}(l)$

The overall reaction:

${overall:}\;2\text{Fe}(s)\;+\;\text{O}_2(g)\;+\;4\text{H}^{+}(aq)\;{\longrightarrow}\;2\text{Fe}^{2+}(aq)\;+\;2\text{H}_2\text{O}(l)$

The rust that is hydrated iron(III) oxide can form iron(II) ions which can react further with oxygen.

$4\text{Fe}^{2+}(aq)\;+\;\text{O}_2(g)\;+\;(4\;+\;2x)\;\text{H}_2\text{O}(l)\;{\longrightarrow}\;2\text{Fe}_2\text{O}_3{\cdot}x\text{H}_2\text{O}(s)\;+\;8\text{H}^{+}(aq)$

Thus, from the above reactions ,

Iron is being oxidized at the anode and water is acting as the electrolyte.

3 0

4 years ago

2. A copper wire can conduct electricity whether the wire is

Stells [14]

Answer:

Intensive

Explanation:

The electrical conductivity of a wire depends on its composition, not the length of the wire.

Hope this helps! If correct pls mark brainliest :)

7 0

3 years ago

Suppose you want to prepare a buffer with a pH of 4.59 using formic acid. What ratio of [sodium formate]/[formic acid) do you ne

katrin [286]

Answer:

7.08

Explanation:

To solve this problem we'll use the Henderson-Hasselbach equation:

pH = pka + log $\frac{[A^-]}{[HA]}$

Where $\frac{[A^-]}{[HA]}$ is the ratio of [sodium formate]/[formic acid] and pka is equal to -log(Ka), meaning that:

pka = -log (1.8x10⁻⁴) = 3.74

We input the data:

4.59 = 3.74 + log $\frac{[A^-]}{[HA]}$

And solve for $\frac{[A^-]}{[HA]}$ :

0.85 = log $\frac{[A^-]}{[HA]}$

$10^{(0.85)}$ = $\frac{[A^-]}{[HA]}$

$\frac{[A^-]}{[HA]}$ = 7.08

3 0

3 years ago

2. As the sun heats the surface of the oceans, two layers of water result. What separates the layers?

worty [1.4K]

Carbon dioxide I think lol

7 0

4 years ago

Read 2 more answers

Water(H2O) is composed of the same elements as carbon monoxide (CO). How do their properties compare?

adoni [48]

The correct answer of the given question above would be option B. Water is composed of the same elements as carbon monoxide, but their properties compare because they have different properties due to the different arrangement of atoms. Hope this answer helps.

8 0

3 years ago

Read 2 more answers