Answer:
Intermolecular forces (IMFs) can be used to predict relative boiling points. The stronger the IMFs, the lower the vapor pressure of the substance and the higher the boiling point. Therefore, we can compare the relative strengths of the IMFs of the compounds to predict their relative boiling points.
Explanation:
Answer:
Molecules are moving faster in the glass of Steam.
Explanation:
The three physical states of H₂O are Ice (Solid state), Water (Liquid state) and Steam (Gas state) respectively.
As we know the particles (i.e. molecules) in solid state are stationary and they are unable to change their position and are only vibrating therefore we can omit the option of Ice.
When heat is provided to Ice it melts into liquid water. The molecules are still interacting via intermolecular forces. In this state the molecules are not stationary. They exist in the form of layers (due to intermolecular forces) and these layers slide over each other hence, resulting in the change of position of molecules.
While, when liquid water is further heated it converts into steam ( a gas sate). In this state the molecules are not interacting with each other. They move faster in random directions and collide with each other. Hence, this is the correct answer.
Answer:
a. .
b.
c.
Explanation:
Hello,
In this case, considering that the valve is opened, we can use the Boyle's law in order to compute the final pressure of argon by considering its initial pressure and volume and a final volume of 5.0 L:
And the final pressure of helium:
Which actually are the partial pressure of both of them, it means that the total pressure is:
Finally, the mole fraction of each gas is computed by considering the Dalton's law:
Best regards.
Calcium (ca) is iron form elements
Answer:
The reactant here is sucrose. It is the substance that decompose into carbon dioxide and water. Sucrose is the one who undergoes a chemical change in the process therefore it is the reactant. Carbon dioxide and water on the other hand are the products of the reaction.