A. Because sodium is a metal and metals are good conductors
2,3,5-trimethylhexane
C9H20
Molecular weight= 128.5g/mol
CH3-CH(CH3)-CH(CH3)-CH2-CH(CH3)-CH3
Explanation:
Following factors can affect blood pressure :
- Smoking.
- Lack of physical activity.
- Too much salt in the diet.
<span>Cesium-134 is an isotope. An isotope is two or more elements that have the same number of protons, but different number of neutrons. A Neutron is a subatomic particle that has about to same mass as a proton, but its not electrically charged. One atom of CS-134 has 78 neutrons.</span>
Answer:
(a) Density of the air = 1.204 kg/m3
(b) Pressure = 93772 Pa or 0.703 mmHg
(c) Force needed to open the door = 15106 N
Explanation:
(a) The density of the air at 22 deg C and 1 atm can be calculated using the Ideal Gas Law:

First, we change the units of P to Pa and T to deg K:

Then we have

(b) To calculate the change in pressure, we use again the Ideal Gas law, expressed in another way:

(c) To calculate the force needed to open we have to multiply the difference of pressure between the inside of the freezer and the outside and the surface of the door. We also take into account that Pa = N/m2.
