Answer:
D.When the boiling points of the components are different
Explanation:
I believe the formal name for this procedure is actually distillation.
Answer:
A weak acid will partially dissociate. A strong acid will almost completely dissociate.
Explanation:
This means that the H+ will "fall" off of the molecule and bind to H2O, forming H3O+
The pH will drop regardless, but moreso for a strong acid, as the H3O content rises, also moreso for a strong acid.
Metals of Group 1 donate 1 electron from its ns orbital to form ionic bond, where n is the no. of its outermost shell.
Metals of Group 2<span> donate 2 electrons from its ns orbital to form ionic bond, where n is the no. </span>of its <span>outermost shell. </span>
Answer : -69.286 KJ heat energy is liberated.
Solution : Given,
Standard enthalpy of formation : When one mole of a substance is formed from its constituent elements.
(for 1 mole)
Mass of Mn = 7.9 g
Molar mass of Mn = 54.93 g/mole
First we have to calculate the moles of Mn.
The formation reaction of is represented as,
For this reaction, the standard enthalpy of formation is,
From the reaction, we conclude that
4 moles of Mn releases heat energy = -1924.6 KJ
0.144 moles of Mn releases heat energy =
Therefore, -69.286 KJ heat energy is liberated.
Acetic acid can be prepared from ethane by oxidizing it. Acetic acid is generally a carboxylic acid. These acids can be made by the oxidation of alcohols using potassium dichromate(VI) solution with sulfuric acid. Ethane is made into acetic acid in two steps. First it is formed into an aldehyde and then to acetic acid.