Solids can often diffuse into a liquid but a solid cannot diffuse into another child

The prefix 'sub' means 'below'. Why are particles smaller than an atom called subatomic particles.

Andru [333]

Answer:

Because they are smaller than an atom

Explanation:

3 0

3 years ago

The dipole measured for HI is 0.380 D. The bond distance is 161 pm. What is the percent ionic character of the HI bond?

Feliz [49]

Answer:

Percent ionic character of HI bond is 4.91%.

Explanation:

<h3>Given Data:</h3>

Measured Dipole = 0.380D

bond distance = d = 161pm = 1.61*10^-8 cm

<h3>Calculation:</h3>

% ionic character is determined by following equation:

% ionic= (dipole measured/dipole calculated)*100

Now,

$Dipole(calc)=qd$

$Dipole(calc)= (1.6*10^{-19}*3*10^{9})esu *1.61*10^{-8}cm$

(In above step 3*10^8 is multiplied to convert coulomb into esu)

$Dipole(calc)=7.728*10^{-18} esu*cm$

As,

$10^{-18}esu*cm= 1D$

So,

$Dipole(calc)=7.728D$

Now we can % ionic character using above equation:

%ionic=(0.380D/7.728D)*100

% ionic character=4.91%

5 0

4 years ago

If the number of moles of a gas initially contained in a 2.10 l vessel is doubled, what is the final volume of the gas in liters

Anon25 [30]

Avagadro's law gives the relationship between volume of gas and number of moles of the gas. When the temperature and pressure are constant, volume is directly proportional to number of moles of gas.
$\frac{V1}{n1} = \frac{V2}{n2}$
V -volume and n - number of moles of gas.
parameters for the first instance are on the left side and parameters for the second instance are on the right side of the equation
initial number of moles n1 - N
n2 - 2N as the number of moles are doubled
V1 - initial volume - 2.10 L
V2 - final volume - V
substituting the values in the equation
$\frac{2.10L}{N} \frac{V}{2N}$
V = 4.20 L
final volume is 4.20 L

7 0

3 years ago

The shape of the sulfur dioxide molecule, where sulfur is the central atom is

fgiga [73]

Answer:

bent

Explanation:

The molecular formula of sulfur dioxide is written as SO₂

The molecular geometry of sulfur dioxide can be determined using the Lewis structure.

The Lewis structure shows the distribution of electrons around the atoms of a given compound such as sulfur dioxide (SO₂).

In this compound, sulfur is the central atom with 6 valence electrons.

The sulfur is bonded covalently with two oxygen atoms, each with 6 valence electrons. Oxygen contributes 2 lone pairs while sulfur which is the central atom contributes 1 lone pair of electrons in the bond.

The bond angle between the two oxygen atoms and the central sulfur atom is approximately 120⁰, as a result of the bent shape of the molecular structure.

7 0

3 years ago

Pangea used in a sentence

Alisiya [41]

Pangea was a large super continent that existed millions of yearts ago

hope this helps!

3 0

3 years ago

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