in a ionic compounds the characteristic colors of the reactants and the products are caused by the positive or negative ions in the compounds?
cations
Cations and anions
Cr3+. It's an oxidation of chromium. The anion is hydroxide.
A compound can be insoluble or not; but not the cation. You think probable, for example, to silver halogenides.
Yes. Ca(NO3)2=Ca2++2NO3-
Atoms of column 7A become anions when they react with atoms of group 1A elements, which become cations. Both the cations and the anions are monovalent. The cations and anions together form an ionically bonded compound.
cations in a compound are always positive.
Heteroatomic cations is the compound of dialkyl sulfates. This is taught in science.
The anions.
The anions.
These cations may be derived from different chemical elements.
cations and anions
The dark purple color of permanganate fades because during the reaction permanganate is reduced to manganese cations and water. The other reactants and products are not strongly colored.
Cations and anions compse ionic chemical compounds.
Cations and anions
No, cations have a positive charge and have lost electrons. Anions have a negative charge and have gained electrons. In an ionic compound anions and cations attract each other due to opposite charges.
anions and cations
For cations + (ex.: Na+); for anions - (ex.: Cl-).