Why is the following equation invalid? Al + 202 → Al2O3
2 answers:
Answer:
C. The equation violates the Law of Conservation of Mass
Explanation:
This equation is invalid because it violated the Law of conservation of Mass. The correct option is C.
This law establishes that the mass is not preserved or destroyed, but transformed.
That is why in a chemical reaction, the number of atoms involved in the reagents and products must be equal.
to achieve this it is necessary to perform a reaction adjustment.
The correct equation would be:
⇄
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Answer:
=> 1366.120 g/mL.
Explanation:
To determine the formula to use in solving such a problem, you have to consider what you have been given.
We have;
mass (m) = 25 Kg
Volume (v) = 18.3 mL.
From our question, we are to determine the density (rho) of the rock.
The formula:
First let's convert 25 Kg to g;
1 Kg = 1000 g
25 Kg = ?
= 25000 g
Substitute the values into the formula:
= 1366.120 g/mL.
Therefore, the density (rho) of the rock is 1366.120 g/mL.