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4 years ago

5

An iodine atom has seven valence electrons. Do you think it will lose seven electrons or gain

1 answer:

OleMash [197]4 years ago

8 0

Answer:

Hi there!

The correct answer is: Iodine will more likely gain one more electron to obtain an octet.

Explanation:

Atoms are most stable when it has a full outermost electron shell, meaning it has 8 electrons. Plus it takes less energy to gain an electron than, giving away 7 electrons.

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Can someone help please please

Thepotemich [5.8K]

It is your test we can't help you if you have any homework so we can

6 0

2 years ago

A certain substance X condenses at a temperature of 123.3 degree C . But if a 650. g sample of X is prepared with 24.6 g of urea

Pavel [41]

Answer:

<u>The molal boiling point elevation constant is 1.59 ≈ 1.6</u> $Kkgmol^{-1}$

Explanation:

To solve this question , we will make use of the equation ,

Δ $T_{b} = i*K_{b} *m$

<em>where , </em>

<em>Δ $T_{b}$ is the change in boiling point of the substance $X$ ( ° $C$ or $K$ )</em>

<em> $i$ is the Vant Hoff Factor which = 1 in this case ( no unit )</em>

<em> $K_{b}$ is the mola boiling point elevation constant of X ( $Kkgmol^{-1}$ )</em>

<em> $m$ is the molality of the solution which has $(NH_{2})_{2} CO$ as the solute and $X$ as the solution ( $molkg^{-1}$ )</em>

Δ $T_{b}$ = $124.3 -123.3 = 1$ ° $C$ or $K$ ;
$i$ =1;
$m$ = $\frac{moles of solute}{weight of solvent(kg)}$ $molkg^{-1}$

∴ $m = \frac{\frac{24.6}{60} }{\frac{650}{1000} }$

<em>as the weight of $(NH_{2})_{2} CO$ is $60g$ and thus number of moles = $\frac{24.6}{60}$ </em>

<em>and the weight of solvent in $kg$ is $\frac{650}{1000}$ </em>

4. $K_{b}$ ⇒ ?

∴

$1=1*K_{b} *\frac{\frac{24.6}{60} }{\frac{650}{1000} }$

⇒ $K_{b}$ = $1.59$ ≈ 1.6 $Kkgmol^{-1}$

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3 years ago

What is an unknown element´s that has 35 protons

Zolol [24]

Solved: An Unknown Element Contains 35 Protons, 36 Electro... | ...

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4 years ago

How are different forms of energy related?

AysviL [449]

Answer:

Pls rate Brainliest and See Explanation

Explanation:

A

6 0

3 years ago

Read 2 more answers

Jacques Charles and Guy-Lussac were influenced by the earlier gas research in the 1600s by ____.

mario62 [17]

Answer:

Robert Boyle

Explanation:

Robert Boyle (1627–1691) is regarded as the individual who established that the amount of gas decreased with the increasing stress, and vice versa, the popular Rule of Boyle. A prominent researcher and philosopher during his day, he was indeed a great supporter of experimental methods.

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3 years ago