Hydrogen because it only has one electron
When two clear substance combines, an insoluble solid is formed that settle downs as a ________.
When two clear substance combines, an insoluble solid is formed that settle downs as a <u>precipitate</u><u>.</u>
<em>→</em><em>A </em><em>precipitate</em><em> </em><em>is </em><em>a </em><em>substance</em><em> </em><em>to </em><em>be </em><em>deposited</em><em> </em><em>in </em><em>solid</em><em> </em><em>form </em><em>from </em><em>a </em><em>solution</em><em>.</em>
______________________________________
That would be c, the alveoli.
Answer: Based only on vapor pressure data, ethyl ether (vapor pressure at 293 K = 450 torr) has the weakest intermolecular attractions. The correct option is B.
Explanation:
Vapour pressure can be defined as the pressure created by vapour of a substance( gas or liquid) in thermodynamic equilibrium state in a closed container at a certain temperature.
Factor which affects the vapour pressure of a substance includes:
- surface area
- intermolecular forces and
- temperature.
Strong intermolecular attractions between molecules in a medium produce a lower rate of evaporation and a lower vapour pressure. While weak intermolecular attraction between molecules in a medium produce a higher rate of evaporation and a higher vapour pressure.
From the options listed above, ethyl ether has the highest vapour pressure at the same temperature with others, therefore it will have the weakest intermolecular attractions.
