The density of mercury is 13.5 g/ml and the density of water is 1.00 g/ml. if a mercury barometer reads 805 mmhg, what is the barometric pressure in cmh2o hint: from physics we find that the pressure is related to the height according to the equation

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

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.

catya that's not even a b or c