Mg3P2
Formula: CrP
There is no 'binary formula'. You can say that hydrogen iodide is a binary compound, that is one formed from just two elements. HI is its formula.
The chemical formula for magnesium bisulfate is Mg(HSO4)2.
The chemical formula for calcium phosphide is Ca3P2
By changing the spelling to binary covalent compund.
Mg3P2. It would be called magnesium phosphide.
Formula: P3-
Formula: P3-
Formula: P3-
Formula: P3-
Formula: P3-
The formula for a magnesium ion is Mg2+. This indicates that the magnesium atom has lost two electrons, giving it a positive charge of 2.
The correct ionic formula when Mg^2+ and P^3- react is Mg3P2. The magnesium ion has a charge of 2+ and the phosphide ion has a charge of 3-, so to balance the charges, two magnesium ions are needed for every three phosphide ions.
Mg2+
The formula and charge of the nitrate ion is NO3-, and the formula and charge of the magnesium ion is Mg2+. Together they make magnesium nitrate, Mg(NO3)2.
The chemical formula of magnesium sulfate heptahydrate is MgSO4.7H2O.
Formula: CrP