I really need help guys in order to pass this. its kinda urgent!
1 answer:
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Answer:
The answer is
<h2>4.54 g/cm³</h2>Explanation:
The density of a substance can be found by using the formula
From the question
mass of rock = 454 g
volume = 100 cm³
The density of the rock is
We have the final answer as
<h3>4.54 g/cm³</h3>Hope this helps you
Answer:
Explanation:
Hello,
In this case, considering the given reaction:
Thus, for the equilibrium, just water and hydrogen participate as iron and iron(II,III) oxide are solid:
Thus, at the beginning, the concentration of water is 0.05 M and consequently, at equilibrium, considering the ICE procedure, we have:
Thus, the change is obtained as:
Thus, the moles of hydrogen at equilibrium are:
Therefore, the grams of iron(II,III) oxide finally result:
Best regards.