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3 years ago

Identify the generic outer electron configuration for the noble gases

1 answer:

4 0

The generic outer electron configuration for the noble gases is ns₂ np₆. All noble gases have fully completely shell.

<h3>What are noble gases?</h3>

Noble gases are all monatomic gases, which all are odorless and colorless with very less reactivity.

All noble gases have completely filled s and p orbitals.

Generally, S orbital contain 5 electrons and p orbital contain 6 electrons

Helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and the radioactive radon (Rn) are all noble gases.

Thus, the generic outer electron configuration for the noble gases is ns₂ np₆.

Learn more about noble gases

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To find the mass of Ca(NO3)2 you would add up ___ Calcium, ___ Nitrogens, and ___ Oxygens.

Varvara68 [4.7K]

The answer for the following answer is mentioned below.

Therefore the mass of calcium nitrate ( $Ca(NO_{3} )_{2}$

Explanation:

To find the mass of calcium nitrate ( $Ca(NO_{3} )_{2}$ ) is :

No of calcium are 1

No of nitrogen are 2

No of oxygen are 6

$( NO_{3} ){2}$ = $N_{2} O_{6}$

So therefore;

No of nitrogen are 2

No of oxygen are 6

Mass of ( $Ca(NO_{3} )_{2}$ ) :

molecular mass of calcium =40

molecular mass of nitrogen = 14

molecular mass of oxygen = 16

$N_{2} O_{6}$ = (14×2) + (16×6)

= 28 + 96

= 124

$Ca(NO_{3} )_{2}$ = 40 + 124

$Ca(NO_{3} )_{2}$ = 164 grams

Therefore the mass of calcium nitrate ( $Ca(NO_{3} )_{2}$ ) is 164 grams

3 0

3 years ago

You add 168.90 grams of NaCl to a container and then you add 616.00 grams of water to that same container What is the weight per

erma4kov [3.2K]

Answer:

The weight percent of NaCl in the container is 21.5%

Explanation:

Given that,

Mass of NaCl = 168.90 gram

Mass of water = 616.00 grams

We need to calculate the weight percent of NaCl in the container

Using formula of percentage of weight

$weight\ \%\ of\ component\ of\ the\ solution =\dfrac{weight\ of\ the\ component\ in\ the\ solution}{total\ weight\ of\ the\ solution}\times100$

Put the value into the formula

$weight\ \%\ of\ component\ of\ the\ solution =\dfrac{168.90}{168.90+616.00}\times100$

$weight\ \%\ of\ component\ of\ the\ solution=21.5\%$

Hence, The weight percent of NaCl in the container is 21.5%

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4 years ago

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Answer:

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Explanation:

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