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3 years ago

Which electron configuration is correct for a sodium ion?

Chemistry

1 answer:

ioda3 years ago

3 0

on the basis of 2n2 rule or subshell?

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explain why ionic compounds are not electrical conductors in the solid state, but conduct electricity when dissolved.

Alik [6]

Answer:

Hi !

Here is your answer !

Ionic compounds cannot conduct electricity when solid, as their ions are held in fixed positions and cannot move.

Explanation:

Ionic compounds conduct electricity when molten (liquid) or in aqueous solution (dissolved in water), because their ions are free to move from place to place.

Thank You !

4 0

2 years ago

Why is it not correct/precise to say "a molecule of salt?"

Fynjy0 [20]

It is not correct to say " a molecule of salt " because salt is a compound.

Explanation:

As we know a molecular bond is present in each molecule.
Salt (NaCl) is considered as a compound because it is made up of two types of elements that are sodium as well as chlorine.
On the other hand it is not considered as a molecule as it is not holding an ionic bond.
As a result we can name it as an ionic compound. Hence it is not considered as a molecule of salt.

4 0

3 years ago

A 1.24g sample of a hydrocarbon, when completely burned in an excess of O2 yields 4.04g Co2 and 1.24g H20. Draw plausible struct

arsen [322]

Answer:

Plausible structure has been given below

Explanation:

Molar mass of $CO_{2}$ is 44 g/mol and molar mass of $H_{2}O$ is 18 g/mol
Number of mole = (mass/molar mass)

4.04 g of $CO_{2}$ = $\frac{4.04}{44}moles$ $CO_{2}$ = 0.0918 moles of $CO_{2}$

1 mol of $CO_{2}$ contains 1 mol of C atom

So, 0.0918 moles of $CO_{2}$ contains 0.0918 moles of C atom

1.24 g of $H_{2}O$ = $\frac{1.24}{18}moles$ $H_{2}O$ = 0.0689 moles of $H_{2}O$

1 mol of $H_{2}O$ contain 2 moles of H atom

So, 0.0689 moles of $H_{2}O$ contain $(2\times 0.0689)moles$ of $H_{2}O$ or 0.138 moles of $H_{2}O$

Moles of C : moles of H = 0.0918 : 0.138 = 2 : 3

Empirical formula of hydrocarbon is $C_{2}H_{3}$

So, molecular formula of one of it's analog is $C_{4}H_{6}$

Plausible structure of $C_{4}H_{6}$ has been given below.

4 0

3 years ago

The difference in the energy exerted by an 8.0 earthquake compared to a 6.0 earthquake?

hammer [34]

<span>The difference in the energy exerted by an 8.0 earthquake compared to a 6.0 earthquake

A magnitude 8.0 earthquake is 100 times bigger and 1000 times stronger (energy released) than a magnitude 6.0 earthquake.

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4 0

3 years ago

What happens when a solid turns straight into a gas?

LiRa [457]

Answer:

The atoms are separating, and sublimation is happening.

Explanation:

5 0

3 years ago