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lisov135 [29]
3 years ago
12

Why is Sodium chloride a compound but not a molecule? I thought all the compounds are molecule but not all molecules are compoun

d...its so confusing.?
Chemistry
1 answer:
Firdavs [7]3 years ago
8 0
Molecule is the general term used to describe any atoms that are connected by chemical bonds. Every combination of atoms is a molecule. A compound is a molecule made of atoms from different elements.
Well, if a molecule is considered to be a discrete small unit made up of atoms joined together, then NaCl, and any other ionic solid is not really a molecule. In NaCl we have a repetitive crystal structure in which each Na+ ion is surrounded by Cl- ions, and vice-versa, for as far as the crystal extends. There really isn't such a thing as an NaCl molecule.

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Which member of each pair is more soluble in water? Why?<br> (a) CH₃CH₂OCH₂CH₃(l) or CH₃CH₂OCH₂(g)
Anna [14]

CH₃CH₂OCH₂ is more soluble in water because it has shorter hydrocarbon chain.

<h3>What is hydrocarbon?</h3>

Hydrocarbon is defined as the compound which contain hydrocarbon and carbon atoms.

The carbon atom attached to each other to form framework and hydrogen atom attach to them in different ways to give different configuration. One of the most popular hydrocarbon compound is diamond.

<h3>Solubility of hydrocarbon in water</h3>

Hydrocarbon is non polar compound whereas water is polar compound. So, hydrocarbon is in soluble in water. But as they have weak intermolecular interactions known as London dispersion forces i.e. Instantaneous dipole-induced dipole interactions.

make them less soluble in water.

Greater the hydrocarbon chain lesser will be the solubility of ketone in water. On the other hand, lesser the hydrocarbon chain greater will be the solubility of ketone in water.

Thus, we concluded that the CH₃CH₂OCH₂ is more soluble in water because it has shorter hydrocarbon chain.

learn more about hydrocarbon:

brainly.com/question/16020705

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7 0
2 years ago
Which phrase describes properties of a solid?
Licemer1 [7]

Answer: fixed shape and volume

Explanation:

i took the quiz so its right

6 0
3 years ago
Give the result of the following expression with the correct number of significant figures
Marianna [84]
84 m/s x 31.221 s = 2600 m
-rounded from 2622.564 m because 84 m/s has only two significant figures
4 0
3 years ago
Calculate the number of moles of a gas that is present in a 7.55 L container at 45°C, if the gas exerts a pressure of 725mm Hg.
vovikov84 [41]

<u>Answer:</u> The number of moles of gas present is 0.276 moles

<u>Explanation:</u>

To calculate the number of moles of gas, we use the equation given by ideal gas:

PV = nRT

where,

P = Pressure of the gas = 725 mm Hg

V = Volume of the gas = 7.55 L

n = number of moles of gas = ?

R = Gas constant = 62.3637\text{ L.mmHg }mol^{-1}K^{-1}

T = Temperature of the gas = 45^oC=(45+273)K=318K

Putting values in above equation, we get:

725mmHg\times 7.55L=n\times 62.3637\text{ L.mmHg }mol^{-1}K^{-1}\times 318K\\\\n=0.276mol

Hence, the number of moles of gas present is 0.276 moles

4 0
3 years ago
What type of wave it do the contractions of the snakes muscles make as a snake moves forward
Cloud [144]
Hello.

<span>It makes a longitudinal wave because it stretches and compresses while as it slithers foward.
</span>
Have a nice day
4 0
3 years ago
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