Answer:
Take a look to R, where the units are L . atm/K . mol.. your pressure is in Torr...so make the conversion to atm. (760 Torr is 1 atm) and then take the volume... as you have mL, remember that R is with L, so convert mL to L by making the division /1000. Pressure and volume are those you have to convert
Answer: (C) .There are four molecules of sodium sulfite.
Explanation:
means that there are four molecules of sodium sulfite.
Molecule is defined as a group of atoms bonded together. They are smallest unit of the substance which participates in a chemical reaction.
Atom is defined as smallest unit of matter which composed of electrons , protons and neutrons.
Answer:
Like a gas, a liquid is able to flow and take the shape of a container.
N2O4Pb. Chemical Names: 13826-65-8. Lead nitrite. Nitrous acid, lead(2+) salt.
Benefits of friction.
1. Walking. Friction between the soles of our shoes and the ground enables us to walk. The sole of the shoe is held to the ground through friction. This is what is termed as "grip" of the shoe. The more grip a shoes offers, the better and faster we can walk.
2. Writing. Writing using a pen requires friction. It is impossible to hold a pen in the hand without friction because it would slip out. Also the graphite point of the pencil would not make a mark on the paper without friction.
Drawbacks of friction
1. Drag. An aircraft taking off experiences significant friction between it and the air resulting in drag, so much fuel has to be used to create energy to overcome the wind resistance.
2. Surface hindrance. Friction makes moving something heavy from one part of a room to another very difficult. Sliding a large box across the flour takes a lot of energy due to friction between the box and the floor.
