The correct answer is option C, that is, it is reduced.
In reduction and oxidation reactions, reduction refers to the loss of an oxygen atom from a molecule or the gaining of one or more electrons. A reduction reaction is observed from the perspective of the molecule being reduced, as when one molecule gets reduced, another one gets oxidized. The complete reaction is called a redox reaction.
In the given case, iron gains electrons mean that it is reduced.
Answer:
7.28 × 10³ K
Explanation:
Let's consider the following reaction.
N₂(g) + O₂(g) → 2 NO(g)
The reaction is spontaneous when the standard Gibbs free energy (ΔG°) is negative. ΔG° is related to the standard enthalpy of the reaction (ΔH°) and the standard entropy of the reaction (ΔS°) through the following expression.
ΔG° = ΔH° - T . ΔS°
If ΔG° < 0,
ΔH° - T . ΔS° < 0
ΔH° < T . ΔS°
T > ΔH°/ΔS° = (180.5 × 10³ J/mol)/(24.8 J/mol.K) = 7.28 × 10³ K
The reaction is spontaneous above 7.28 × 10³ K.
Answer:
CoSO₄.7H₂O
Explanation:
Some salts are in its hydrate form to stabilize them. The hydrated form of CoSO₄ is:
CoSO₄.XH₂O
To find the hydration of the COSO₄ you must find the ratio of H₂O and CoSO₄ that is:
0.068921 moles H₂O / 0.0098459 moles CoSO₄ = 7
That means you have 7 moles of water per mol of CoSO₄ and the formula is:
<h3>CoSO₄.7H₂O</h3>
Answer:
B) Tammi has a comparative advantage in both tasks.
Explanation:
Based on the information provided in the question, Horace does not have the total advantage in the grooming of dogs as well as the bathing of cats due to the opportunity cost. On the other hand, Tammi has the total advantage of the bathing of cats as well as the grooming of dogs due to the opportunity cost. Therefore, the correct option is option B.