Only 1 molecule of NH3 will be produced in the following reaction since it requires 2 moles of nitrogen and excess hydrogen to create one molecule. We can't create more than one since we only have 1 of the nitrogen molecule remaining.
Answer:
In physical change only the physical properties like shape will change and chemical compositions remains same while in chemical change, chemical reaction takes place and the whole composition of that matter get changed.
Explanation:
Physical Change
The changes that occur only due to change in shape or form but their chemical or internal composition remain unchanged.
These changes were reversible.
They have same chemical property.
These changes can be observed with naked eye.
Example
Water converting to Ice.
Water converting to gas.
In this water molecule remain the same, only they rearrange themselves that change its state of mater not composition
Chemical:
The changes, that occur due to change in the composition of a substance and result in a different compound is known as chemical change.
These changes are irreversible.
These changes occur due to chemical reactions.
These may not be observed with naked eye.
Example:
Combustion of fuel or wood: that oil or wood convert into energy, CO2 and ash in case of wood
Boiling of egg: that change the chemical composition of protein in the egg
The reaction of Hydrogen and oxygen:
H 2 (g) + O 2 (g) -------------> 2H 2O (l)
With a good mask-to-face seal and an oxygen flow rate of 15 L/min, the nonrebreathing mask is capable of delivering up to 90% inspired oxygen.
<h3>What is fraction of inspired oxygen?</h3>
FiO2 is the fraction of inspired oxygen which is explained as the concentration of oxygen inhaled by a person.
<h3>Non breather mask:</h3>
It delivers a high concentration of oxygen. Hence the liter flow will be 8-15L/min with the percentage of oxygen between 60-90%.
The liter flow of nonbreathing mask must not be less than 8L/min.
From the above information we can conclude that the fraction of inspired oxygen for a nonbreathing mask is 90%
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On the cumulative Report, it would be much easier to read for the patients if the ranges in parentheses were tabbed over from the actual result instead of printing directly one space after the result.