4 years ago

Electrons spill in shells in the nucleous the closest shell (n=1) can contain the maximum of. Electrons

Chemistry

1 answer:

stiks02 [169]4 years ago

8 0

The answer is 2 electrons I believe!

You might be interested in

4. Balance the following equation:<br> _NO + __02,_NO2

Ipatiy [6.2K]

Answer:

...................

5 0

4 years ago

How many grams of ethanol (density 0.80 g/cm 3) should be added to 5.0 g of chloroform (density 1.5 g/cm 3) if the resulting mix

kaheart [24]

Answer:

9.2 grams of ethanol should be added.

Explanation:

Let the mass of ethanol be x

Density of an ethanol = $d_1=0.80 g/cm^3$

Volume of the ethanol = $V_1=\frac{x}{0.80 g/cm^3}$

Mass of chloroform = 5.0 g

Density of an chloroform= $d_2=1.5 g/cm^3$

Volume of the ethanol = $V_2=\frac{5.0 g}{1.5 g/cm^3}=\frac{1}{3}$

Mass of the mixture,m = x + 5.0 g

Density of the mixture = $d=1.2 g/cm^3$

Volume of the mixture= $V=\frac{m}{1.2 g/cm^3}=\frac{x+5.0 g}{1.2 g/cm^3}$

$V=V_1+V_2$

$\frac{x+5.0 g}{1.2 g/cm^3}=V_1+\frac{1}{3}$

$\frac{x+5.0 g}{1.2 g/cm^3}=\frac{x}{0.80 g/cm^3}+\frac{1}{3}$

Solving for x , we get

x = 9.2 g

9.2 grams of ethanol should be added.

8 0

3 years ago

Determine the force of gravitational attraction between a 4,000 kg elephant that is 10 meters away from a 180 kg lion.

Anastaziya [24]

Answer:

What grade is this in for? Seems hard

4 0

3 years ago

Ions bonds are strong?<br> True or False

zimovet [89]

Answer:

Ture

Explanation:

5 0

3 years ago

Read 2 more answers

Convert 7.9 x 10^22 atoms of Ca to grams

Vika [28.1K]

Answer:

Mass = 5.24 g

Explanation:

Given data:

Number of atoms of Ca = 7.9×10²² atoms

Mass of Ca = ?

Solution:

First of all we will calculate the number of moles by using Avogadro number.

1 mole contain 6.022×10²³ atoms

7.9×10²² atoms × 1 mol /6.022×10²³ atoms

1.31 ×10⁻¹ mol

0.131 mol

Mass of Ca:

Mass = number of moles × molar mass

Mass = 0.131 mol × 40 g/mol

Mass = 5.24 g

6 0

3 years ago