Cl-1.
A chloride ion would simply be represented by chlorine's chemical symbol along with a negative 1 to indicate the gain of an electron: Cl-1 or Cl1- or just Cl-.
Chloride is an ion and would be Cl-
When cadmium chloride is mixed with silver chloride, a double displacement reaction occurs, leading to the formation of cadmium chloride and silver chloride. The reaction can be represented by the chemical equation: CdCl2 + 2AgCl -> CdCl2 + 2AgCl.
CaI2, this is the correct formula for calcium iodide
When hydrochloric acid is mixed with magnesium, hydrogen gas is produced along with magnesium chloride. This reaction can be represented by the chemical equation: 2HCl + Mg -> MgCl2 + H2.
A chemical reaction can be represented by a chemical equation.
Most commonly it is AuCl3 for gold(III) chloride. Gold(I) chloride would be AuCl.
Mg2+
The symbols for iron chloride plus hydrogen are: FeCl2 + H2.
The chemical formula of sodium chlorate is NaClO3.
Chemical symbols - Na is Sodium and Cl is Chlorine
The symbol for a substance in a water solution is typically written as the chemical formula of the substance followed by "(aq)" to indicate it is in an aqueous solution. For example, the symbol for sodium chloride in water solution would be NaCl(aq).