Answer:
Barometric pressure will be 
Explanation:
We know, 
where P is barometric pressure, h is height of liquid inside barometer,
is density of liquid and g is gravitational constant
If barometric pressure is x cm
for 805 mm Hg then-

So, 
Hence barometric pressure will be 
She needs to do more observations to find out what makes her foot burn before she analyzes the data or does anything else, so she should make observations next.
We can characterize properties of a substance to identify it because it helps us determine how the substance should be used. We can identify a substance by using physical or chemical properties. These help us by telling us which chemical we are looking at.
I hope this helps.. I wasn't sure what kind of answer you were looking for.
Explanation:
—COOH and —NH₂
Carboxylic Acid and Amino
The gas laws describe and predict the behavior of gases with an explanation and experimental data
So the given statement is False.
2) The volume of gas can be calculated based on Avagadro's law
It states that the volume of a gas is directly proportional or varies with the moles of the gas. Higher the moles more the volume, condition is the pressure and temperature are constants in the two conditions
Thus as here the pressure and temperature of nitrogen gas is kept constant
V α moles
or

Where
V1 = 6 l
n1 = 0.50 mol
V2 = ?
n2 = 0.75 mol
On putting values
V2 = 6 X 0.75 / 0.5 = 9 L
so resulting volume of the gas will be 9L