Answer:
Lithium oxide, Li₂O.
Explanation:
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In this case, according to the given amounts, it is possible to write down the chemical reaction as shown below:
Which means that the metallic oxide has the following formula: M₂O. Next, we can set up the following proportional factors according to the chemical reaction:
Thus, we perform the operations in order to obtain:
So we solve for x as shown below:
Whose molar mass corresponds to lithium, and therefore, the metallic oxide is lithium oxide, Li₂O.
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Answer:
- <em>The conditions under which a real gas is most likely to behave ideally is at low pressure and hight temperatures.</em>
Explanation:
According to molecular kinetic theory, 1) gas particles (molecules or atoms) occupy a negligible fraction of the total volume of the gas, and 2) the force of attraction between gas molecules is zero.
Those two assumptions constitute the basis for the behavior of a gas and an ideal gas.
The lower the pressure and the higher the temperature the closer those assumptions are valid for real gases.
At low pressure, the particles of the gas will be more separated from each other and so the tiny volume they occupy will be a smaller fraction of the total volume.
At higher temperatures, the particles will have more kinetic energy, which means that they will have larger average speed, and so the forces between the molecules will count less.
So, you conclude that <em>under low pressure and high temperatures a real gas is most likely to behave ideally.</em>
the oxidation state of each atom
Answer:
Phosphoric acid is a triprotic acid. This means that it can dissociate in water up to three times, each time releasing a proton into the water as shown in the following reactions:
H3PO4 (s) + H2O (l) is in equilibrium with H3O + (aq) + H2PO4− (aq)
H2PO4− (aq) + H2O (l) is in equilibrium with H3O + (aq) + HPO42− (aq)
HPO42− (aq) + H2O (l) is in equilibrium with H3O + (aq) + PO43− (aq)
Explanation:
Phosphoric acid having contact with water, dissociating from a proton up to three times, that is why the three possible reactions are determined above.
This acid is an acid that belongs to oxo acids and its formula is H3PO4
