Question

What is the step by step method of magnesium phosphate

Answer 1

Answer:

Magnesium phosphate is an ionic compound, because firstly, there is no numerical prefix on the second word of the name, so we know it is not a covalent compound.

In the names of ionic compounds, the first word is always the cation. So, the cation of this compound is magnesium (Mg (2+) ), with a charge of 2+. The latter word is always the anion, which is phosphate (PO4 (3-) ) in this compound, with a charge of 3-. We can use this information to determine the formula later.

The sum of charges of the cation and the anion of any ionic compound is always zero. The amount of the cation and the anion needed for the sum to be zero can be determined simply with the criss-cross method. This involves taking the charge of one ion, and making the absolute value of that charge the amount of the other ion.

Magnesium has a charge of 2+; therefore, we will have 2 phosphate cations. Phosphate has a charge of 3-, so we will have 3 magnesium cations. We end up with our final formula: Mg3(PO4)2.

Ions are not in parentheses unless they are polyatomic, and there is more than one of the polyatomic ions. This is why the NO3 in NaNO3 is not in parentheses, and in parentheses in Mg(NO3)2.

Answer 2

$\huge\underline\bold \red {♡AnswEr♡}$

Magnesium phosphate is Mg3(PO4)2.

Okay, onto how I found that:

Magnesium phosphate is an ionic compound, because firstly, there is no numerical prefix on the second word of the name, so we know it is not a covalent compound.

In the names of ionic compounds, the first word is always the cation. So, the cation of this compound is magnesium (Mg (2+) ), with a charge of 2+. The latter word is always the anion, which is phosphate (PO4 (3-) ) in this compound, with a charge of 3-. We can use this information to determine the formula later.

The sum of charges of the cation and the anion of any ionic compound is always zero. The amount of the cation and the anion needed for the sum to be zero can be determined simply with the criss-cross method. This involves taking the charge of one ion, and making the absolute value of that charge the amount of the other ion.

Magnesium has a charge of 2+; therefore, we will have 2 phosphate cations. Phosphate has a charge of 3-, so we will have 3 magnesium cations. We end up with our final formula: Mg3(PO4)2.

Ions are not in parentheses unless they are polyatomic, and there is more than one of the polyatomic ions. This is why the NO3 in NaNO3 is not in parentheses, and in parentheses in Mg(NO3)2.

BE BRAINLY ⚡☃️