Gold is a element. Hope this helps
There is no hydrogen gained it is a combination reaction
Answer : The height of the column in a barometer is, 10.3 m
Explanation :
To calculate the height of the column in a barometer we are using formula as:
![P=h\rho g](https://tex.z-dn.net/?f=P%3Dh%5Crho%20g)
where,
P = external pressure = ![101kPa=101\times 10^3kg/m.s^2](https://tex.z-dn.net/?f=101kPa%3D101%5Ctimes%2010%5E3kg%2Fm.s%5E2)
Conversion used : ![1kPa=10^3kg/m.s^2](https://tex.z-dn.net/?f=1kPa%3D10%5E3kg%2Fm.s%5E2)
h = height of the column in a barometer = ?
= density of water = ![1.00g/cm^3=1000kg/m^3](https://tex.z-dn.net/?f=1.00g%2Fcm%5E3%3D1000kg%2Fm%5E3)
Conversion used : ![1g/cm^3=1000kg/m^3](https://tex.z-dn.net/?f=1g%2Fcm%5E3%3D1000kg%2Fm%5E3)
g = constant of gravity = ![9.81m/s^2](https://tex.z-dn.net/?f=9.81m%2Fs%5E2)
Now put all the given values in the above formula, we get:
![101\times 10^3kg/m.s^2=h\times 1000kg/m^3\times 9.81m/s^2](https://tex.z-dn.net/?f=101%5Ctimes%2010%5E3kg%2Fm.s%5E2%3Dh%5Ctimes%201000kg%2Fm%5E3%5Ctimes%209.81m%2Fs%5E2)
![h=10.3m](https://tex.z-dn.net/?f=h%3D10.3m)
Therefore, the height of the column in a barometer is, 10.3 m
Answer:
true
Explanation:
because God created darkness and water first on th first day .according to order sources