The empty vial is weighed after pouring the sodium chloride out in order to determine the actual amount of product that was produced by the reaction. By taking the full vial and subtracting the empty vial you can calculate the weight of the product.
Sodium atoms lose their single valence band electron becoming positive sodium ions. Chlorine atoms gain a single electron filling the empty space in their valence band becoming negative chloride ions. The oppositely charged ions attract each other electrostatically. The ions can readily form a solid cubic crystal held together by this electrostatic charge, but the ions freely disperse in water forming a solution of isolated sodium ions, isolated chloride ions, and water molecules.
Fill with water, maintain 2-3 days, stir, empty the tank; wash again with hot water.
If you are drinking from it its half empty, if you are pouring it, the glass is half full.
by pouring it down the toilet
sodium chloride dissolve in water because of vacuous compound
sodium chloride is made of elements found on opposite sides of the periodic table because the have to form ions which create opposite charges which creates a magnetic pull to even out the charges forcing them to chemically bond. if a sodium atom (one valence electron) chemically bonds with a chlorine atom (seven valence electrons), the one electron from the sodium is given to the chlorine atom making a Na+1 and a Cl-1 . the two now have full and empty outer valence electron shells. they are magnetically pulled together because opposites attract, and a chemical bond is formed creating sodium chloride. it changes from being called chlorine because when something is negatively charges, it's ending usually changes to -ide or -ite. sodium chloride is very stable because an atom is stablest with a full or empty outer shell. shells hold electrons, and the outer shell holds the valence electron(s). valence electrons are the electrons that do the chemical bonding.
The same, if the cup is empty.
Mine weighed 410 lbs.
Honeycombs in concrete are empty spaces that decrease the structural integrity of the concrete. These can be eliminated by rolling the concrete tight after pouring it.
The Space Shuttle weighed 74,843 kilograms empty.
It's empty weight was 7,635 lbs, and loaded and armed it weighed 9,200 lbs.
The RM weighed 7ton 7cwt (7530kg) empty and had a laden weight of 11 ton 10cwt (11680kg). The RML weighed 7ton 14cwt (7950kg) and had a laden weight of 12ton 6cwt (12550kg)