Answer:
6
Explanation:
Formula: Al2O3
If we require 2Al2O3
We divide 2 by 3
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Which substances in the diagram are most unstable? positive values of enthalpy negative values of enthalpy negative values -50 t
2 answers:
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12 times breathe give 240 ml of pure . Each breathe gives 20 ml of
.
Let us consider, volume of air per breathe= x ml.
Pure from inhaled air=
ml and Pure
from exhaled air=
ml.
Pure from inhaled and exhaled air= 20 ml
So, +
= 20
Therefore, x = 55.5 ml
So, volume of air per breath= 55.5 ml.