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3 years ago

Which of the following forms a molecular solid?Select one:

Chemistry

1 answer:

Gelneren [198K]3 years ago

5 0

Methane (CH4) forms the molecular solid.

<u>Explanation:</u>

The molecules which are held together by intermolecular forces are called molecular solids. It is maintained by solids rather than bonds. The force which holds these solids are weaker than other solids.
It consists of discrete molecules and the cohesive force which binds them together is Vanderwall's force, dipole-dipole interaction and hydrogen bonding. They are held together by an ionic bond or covalent bond.
The weak intermolecular forces have relatively low melting points which are less than 300 degrees Celsius.
Organic solvents dissolves Molecular solvents. Many of the molecular solids are soft electrical insulators with low density.

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Blood is a red coloured fluid which consists of two parts plasma and corpuscles

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3 years ago

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Explanation:

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2 years ago

Dinitrogen pentoxide is used in the preparation of explosives. If 7.93 mol of

Tpy6a [65]

The volume of O₂ produced: 84.6 L

<h3>Further explanation</h3>

Given

7.93 mol of dinitrogen pentoxide

T = 48 + 273 = 321 K

P = 125 kPa = 1,23365 atm

Required

Volume of O₂

Solution

Decomposition reaction of dinitrogen pentoxide

2N₂O₅(g)→4NO₂(g)+O₂ (g)

From the equation, mol ratio N₂O₅ : O₂ = 2 : 1, so mol O₂ :

= 0.5 x mol N₂O₅

= 0.5 x 7.93

= 3.965 moles

The volume of O₂ :

$\tt V=\dfrac{nRT}{P}\\\\V=\dfrac{3.965\times 0.082\times 321}{1.23365}\\\\V=84.6~L$

5 0

4 years ago

How many moles of each element are in one mole of Be(OH)2?

blondinia [14]

Answer:

Explanation:

To find the number of moles of each element present in 1 mole of Be(OH)₂, we use the ratio of the molar masses of the elements to the compound and multiply by the given mole.

Molar mass of Be(OH)₂ = 9 + 2(16+1) = 43g/mol

number of moles of Be = $\frac{9}{43}$ x 1 = 0.209mole

number of moles of O = $\frac{32}{43}$ x 1 = 0.744mole

number of moles of H = $\frac{2}{43}$ x 1 = 0.047mole

3 0

3 years ago

For the following experiments, identify the independent variable and the dependent variable:

faust18 [17]

Answer:

A) IV: number of hours DV: score

Explanation:

Coz,

IV- is the variable that u change

DV- is the variable that u test or measure

In this case, we need to change the hours of studying to see how studying for different hours [1 hr, 2hr, etc (( Independant variable coz we're changing the no. of hours)) ] is going to affect the student's score, and in the end, we are measuring the score of each student [this is the dependant variable].

3 0

3 years ago

Which of the following forms a molecular solid?Select one:​

Which of the following forms a molecular solid?Select one: