colourless
The cation of MgCrO4 is Mg^2+ (magnesium ion).
It is a cation with a 2+ charge, i.e. Mg2+ or Fe2+
The cation that turns water red is usually the ferric (Fe3+) cation. When ferric ions are present in water, they can react with water molecules to form a complex that appears red in color.
A beryllium atom (Be) has 4 electrons. When it forms a cation with a charge of +2 (Be²⁺), it loses two electrons. Therefore, a Be²⁺ cation has 2 electrons remaining.
The cation of Ca is Ca^2+, which means it has lost two electrons and has a positive charge of 2.
The chemical name for AgNH3 2 NO3 is silver diammine nitrate.
The charge on the cation in FeSO4 is +2, as iron (Fe) typically forms a 2+ cation in ionic compounds.
No. helium does not form cation
The cation Mn2S3 contains a manganese ion (Mn) with a charge of +2. Therefore, the ion symbol for this cation is written as Mn^2+.
The charge on the cation in barium sulfide is +2, as barium is in Group 2 of the periodic table and typically forms cations with a 2+ charge.
It is a cation with a 2+ charge, i.e. Mg2+ or Fe2+
The cation of MgCrO4 is Mg^2+ (magnesium ion).
The cation that turns water red is usually the ferric (Fe3+) cation. When ferric ions are present in water, they can react with water molecules to form a complex that appears red in color.
As the elemental metal, calcium is neither a cation nor an anion. Its elemental symbol is 'Ca(s)' . 's' indicating that it is solid. However, like sodium , calcium readily ionises ( loses) 2(two) electrons. Symbolically it is now 'Ca^(2+) ' . It is an ION. Because it is a positive(+) ion , it is known as a 'CATION'. Compare to chlorine, it has electron affinity, and symbolically it is ' Cl^(-) ' . It is also an ION. But because it is a negative (-) ion , it is known as an ANION. So remember. any atom that loses or gains electrons, is no longer an atom, but an ION. If the ion is positively(+) charged, then it is a CATION , and if the ion is negatively(-) charged , then it is an ANION.
The cation of K2CO3 is potassium (K+) and the anion is carbonate (CO3^2-).
The color in a flame test is caused by the presence of specific metal ions in the sample. The cation is the one responsible for producing the color, as it emits characteristic wavelengths of light when it undergoes excitation in the flame.
The sulfate ion itself does not contribute color to a solution, but the accompanying cation may contribute color.