yes zinc nitrate is a salt
It depends on what toothpaste you are using
Chemical formula of the zinc nitrate: Zn(NO3)2
For clarity, zinc (II) nitrate would be the preferred name. However, if you just said "zinc nitrate", most chemists would guess you meant that formula; the +1 oxidation state is technically possible for zinc, but zinc (I) compounds are relatively rare.
Yes zinc will react to form zinc nitrate and silver.
Zinc nitrate purity is defined in catalogs.
zinc nitrate + sodium hydroxide yields sodium nitrate and zinc hydroxide( white precipitate)
Zinc nitrate dissolved in water.
Zinc nitrate is very soluble in water.
Zinc Nitrate + Silver (Displacement Reaction= Zinc is more reactive than Silver)
Zinc II nitrate is Zn(NO3)2
The chemical formula of zinc nitrate is Zn(NO3)2.